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Orbits

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• Orbital mechanics

• Artificial satellites -- Orbits
• Elliptical orbits
• Lagrangian points
• Orbit determination
• Planets -- Orbits
• Space vehicles -- Orbits

• Theory of the Motion of the Heavenly Bodies Moving About the Sun in Conic Sections: A Translation of Gauss's "Theoria Motus", With an Appendix (Boston: Little, Brown and Company, 1857), by Carl Friedrich Gauss, trans. by Charles Henry Davis (page images at MOA)
• Periodic orbits about an oblate spheroid ... (Chicago, 1909), by W. D. MacMillan (page images at HathiTrust)
• Die Bahnbestimmung der Himmelskörper / (Leipzig : W. Engelmann, 1906), by J. Bauschinger (page images at HathiTrust; US access only)
• Die bestimmung der bahn eines kleinen planeten aus vier beobachtungen ... (Berlin, Mayer & Müller, 1902), by Edwin Coddington (page images at HathiTrust; US access only)
• Certain periodic orbits of k finite bodies revolving about a relatively large central mass ... (Chicago, 1906), by Frank Loxley Griffin (page images at HathiTrust)
• Leçons sur la détermination des orbites, (Paris, Gauthier-Villars, 1899), by F. Tisserand and J. Perchot (page images at HathiTrust; US access only)
• Hülfstafeln zur leichten und genauen auflösung des Kepler'schen problems, (Leipzig, W. Engelmann, 1890), by Johan Julius Åstrand (page images at HathiTrust)
• Periodic orbits; oscillating satellites near the Lagrangian equilateral-triangle points ... (Chicago, 1913), by Thomas Buck (page images at HathiTrust)
• Theoretical astronomy relating to the motions of the heavenly bodies revolving around the sun in accordance with the law of universal gravitation, embracing a systematic derivation of the formulæ for the calculation of the geocentric and heliocentric places, for the determination of the orbits of planets and comets, for the correction of approximate elements, and for the computation of special perturbations; together with the theory of the combination of observations and the method of least squares. With numerical examples and auxiliary tables. (Philadelphia, London, J.B. Lippincott & co., 1885), by James C. Watson (page images at HathiTrust)
• A treatise on the analytical dynamics of particles and rigid bodies; with an introduction to the problem of three bodies. (Cambridge, University press, 1904), by E. T. Whittaker (page images at HathiTrust)
• Lehrbuch zur bahnbestimmung der kometen und planeten, (Leipzig, W. Engelmann, 1882 '80), by Th. v. Oppolzer (page images at HathiTrust)
• Theoria motvs corporvm coelestivm in sectionibvs conics solem ambientivm, (Hambvrgi, svmtibvs F. Perthes et I. H. Besser, 1809), by Carl Friedrich Gauss (page images at HathiTrust)
• Sur l'invariabilité des grands axes des orbites planétaires ... (Paris, Gauthier-Villars, 1878), by Spiru C 1851-1912 Harẹt (page images at HathiTrust)
• Theoretical astronomy relating to the motions of the heavenly bodies revolving around the sun in accordance with the law of universal gravitation, embracing a systematic derivation of the formulæ for the calculation of the geocentric and heliocentric places, for the determination of the orbits of planets and comets, for the correction of approximate elements, and for the computation of special perturbations; together with the theory of the combination of observations and the method of least squares. With numerical examples and auxiliary tables. (Philadelphia, London, J.B. Lippincott & co., 1900), by James C. Watson (page images at HathiTrust; US access only)
• A treatise on the analytical dynamics of particles and rigid bodies; with an introduction to the problem of three bodies, (Cambridge, University Press, 1917), by E. T. Whittaker (page images at HathiTrust; US access only)
• Theoretical astronomy relating to the motions of the heavenly bodies revolving around the sun in accordance with the law of universal gravitation [electronic resource] : embracing a systematic derivation of the formulae for the calculation of the geocentric and heliocentric places, for the determination of the orbits of planets and comets, for the correction of approximate elements, and for the computation of special perturbations ; together with the theory of the combination of observations and the method of least squares : with numerical examples and auxiliary tables / (Philadelphia : J.B. Lippincott; London : Trubner, 1868), by James C. Watson (page images at HathiTrust)
• Theoria motvs corporvm coelestivm in sectionibvs conicis solem ambientivm / (Hamburgi : Svmtibvs Frid. Perthes et I.H. Besser, 1809), by Carl Friedrich Gauss (page images at HathiTrust)
• Certain periodic orbits of k finite bodies revolving about a relatively large central mass ... ([Lancaster, Pa., New Era printing So., 1908?]), by Frank Loxley Griffin (page images at HathiTrust)
• Determination of orbits of comets and asteroids, (New York [etc.] McGraw-Hill book company, inc., 1930), by R. T. Crawford (page images at HathiTrust)
• An essay on the determination of the elements of the orbits of comets and planets / (Glasgow : David Robertson, 1833), by D. M'Grigor (page images at HathiTrust)
• On the orbits described by bodies revolving in given planes round immoveable centres of forces. (Cambridge [Eng.] Printed by J. Smith, 1816), by W. Wilkinson (page images at HathiTrust)
• Über die verwendung der rechenmaschine bei der bahnbestimmung von planeten ... (Leipzig, Breitkopf & Härtel, 1912), by Cornelius Christian Veithen (page images at HathiTrust; US access only)
• Theoretical astronomy relating to the motions of the heavenly bodies revolving around the sun in accordance with the law of universal gravitation : embracing ... the formulæ for the calculation of the geocentric and heliocentric places, for the determination of the orbits ... , for the correction of approximate elements, and for the computation of special perturbations; together with the theory of the combination of observations and the method of least squares. ... / (Philadelphia : J. B. Lippincott & co.; London : Trubner & co., 1868), by James C. Watson (page images at HathiTrust)
• Mathematische abhandlungen. (Potsdam, Bey C.C. Horvath, 1797), by Johann Philipp von Rohde (page images at HathiTrust)
• Theoretical astronomy relating to the motions of the heavenly bodies revolving around the sun in accordance with the law of universal gravitation : embracing a systematic derivation of the formulae for the calculation of the geocentric and heliocentric places, for the determination of the orbits of planets and comets, for the correction of approximate elements, and for the computation of special perturbations; together with the theory of the combination of observations and the method of least squares. With numerical examples and auxiliary tables / (Philadelphia : J. B. Lippincott & co., 1869), by James C. Watson (page images at HathiTrust)
• Tables auxiliaires pour la résolution de l'équation de Gauss, sin (z-q)m̳sinz, dans la détermination d'une orbite planétaire, le nombre de décimales y étant conforme á l'exactitude du calcul de l'orbite à 6 décimales. (Paris, Gauthier-Villars et cie, 1916), by Thadée Banachiewicz (page images at HathiTrust; US access only)
• Theorie der Bewegung der Himmelskörper : welche in Kegelschnitten die Sonne umlaufen / (Hannover : C. Meyer, 1865), by Carl Friedrich Gauss (page images at HathiTrust)
• 175 parabolic orbits and other results deduced from over 6,200 meteors / ([Philadelphia : Published by the American Philosophical Society, 1911]), by Charles P. Olivier (page images at HathiTrust)
• Tables du mouvement Keplerien, (Hendaye (B.P.) L'Observatoire d'Abbadia, 1920), by F. Boquet (page images at HathiTrust; US access only)
• Forbidden tangential orbit transfers between intersecting Keplerian orbits / (Washington, D.C. : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; Springfield, Va. : For sale by the National Technical Information Service, 1990), by Rowland E. Burns and Systems Analysis and Integration Laboratory (George C. Marshall Space Flight Center) (page images at HathiTrust)
• Tables for eccentric and true anomaly in elliptic orbits / (Washington, D.C., National Aeronautics and Space Administration ; Springfield, Va. : For sale by the National Technical Information Service, 1963), by Jack T. Kent, David C. Larson, George B. Taack, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Optimized solution of Kepler's equation / (Washington, D.C. : National Aeronautics and Space Administration ; [Springfield, Va. : For sale by the National Technical Information Service], 1972), by John M. Kohout, Lamar Layton, and Goddard Space Flight Center (page images at HathiTrust)
• Apollo experience report : guidance and control systems : orbital-rate drive electronics for the Apollo command module and lunar module / (Washington, D.C. : National Aeronautics and Space Administration, 1974), by Roy B. Parker, Paul E. Sollock, and Lyndon B. Johnson Space Center (page images at HathiTrust)
• Demonstration of Kepler's third law and the effect of elipticity of planetary orbits. (Parsons, Kan., c1905), by Albert Leverett Gridley (page images at HathiTrust)
• Tables for the true anomaly in elliptic orbits, ([Lancaster, Pa., New Era Printing Co., 1911?]), by Frank Schlesinger (page images at HathiTrust)
• Theoretische astronomie, (Braunschweig, F. Vieweg & Sohn, 1912), by Wilhelm Klinkerfues, Th. v. Oppolzer, J. Bauschinger, and Armin Otto Leuscher, ed. by Hugo Buchholz (page images at HathiTrust; US access only)
• The secular variations of the elements of the orbits of the four inner planets computed for the epoch 1850. O.G. M.T. / ([Philadelphia : Published by the American Philosophical Society, 1912]), by Eric Doolittle (page images at HathiTrust)
• Orbits in a magnetic universe / (Oak Ridge, Tenn. : Oak Ridge National Laboratory, 1965), by M. A. Melvin, J. S. Wallingford, U.S. Atomic Energy Commission, and Oak Ridge National Laboratory Directors Division (page images at HathiTrust)
• Research surveys of the orbits and perturbations of minor planets 1 to 1091 from 1801.0 to 1929.5 ([Berkeley, Calif., University of California press, 1935]), by Armin Otto Leuschner (page images at HathiTrust; US access only)
• The calculation of the orbits of asteroids and comets, (Bloomington, Ind., The Principia press, inc., [c1934]), by Kenneth P. Williams (page images at HathiTrust)
• Orbits of asteroids. (Wien [s.n.], 1856-1888), by Mathematisch-Naturwissenschaftliche Klasse. Sitzungsberichte (page images at HathiTrust)
• Méthode nouvelle de la détermination des orbites et le calcul des éphémérides en tenant compte des perturbations ... Novyĭ metod vychislenii︠a︡ orbit i ėfemerid s uchetom vozmushcheniĭ ... (Moskva, Gosudarstvennoe izd-vo, [1922?]), by B. Numerov (page images at HathiTrust; US access only)
• Über Bahnbestimmungen von Planten u. Cometen. (Göttingen, 1862), by Wilhelm Klinkerfues (page images at HathiTrust)
• Tables fondamentales pour la résolution de l'équation de Gauss, sin (z-q)=msin4z, (Paris, Gauthier-Villars et cie, 1916), by Thadée Banachiewicz (page images at HathiTrust; US access only)
• Memoir of the secular variations of the elements of the orbits of the eight principal planets, Mercury, Venus, the Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; with tables of the same; together with the obliquinity of the ecliptic, and the precession of the equinoxes in both longitude and right ascension. ([Washington, Smithsonian Institution, 1872]), by John N. Stockwell (page images at HathiTrust)
• A summary of the linear orbit properties of an accelerator having a general magnetic field / (Madison, Wis. : Midwestern Universities Research Association, [1959]), by G. Parzen, U.S. Atomic Energy Commission, and Midwestern Universities Research Association (page images at HathiTrust)
• Achieving higher beam densities by superposing equilibrium orbits / (Madison, Wis. : Midwestern Universities Research Association, [1959]), by Kent M. Terwilliger, U.S. Atomic Energy Commission, and Midwestern Universities Research Association (page images at HathiTrust)
• Linear oscillations about off-center, fixed point orbits / (Madison, Wis. : Midwestern Universities Research Association ; Washington, D.C. : Available from the Office of Technical Services, U.S. Dept. of Commerce, [1960?]), by M. M. Gordon, U.S. Atomic Energy Commission, and Midwestern Universities Research Association (page images at HathiTrust)
• Effects of radial straight sections from a general point of view / (Madison, Wis. : Midwestern Universities Research Association, [1961]), by W. N. Wong, U.S. Atomic Energy Commission, and Midwestern Universities Research Association (page images at HathiTrust)
• Ueber die Bestimmung und Verbesserung der Bahnen von Himmelskörpern nach drei Beobachtungen. (Leipzig, Breitkofp & Härtel, 1901), by Paul Harzer (page images at HathiTrust; US access only)
• Determinación de la órbita del planeta (796) Sarita. (La Plata, Observatorio Astronómico, 1920), by Hugo Arturo Martínez (page images at HathiTrust; US access only)
• Calcul des orbites et des éphémérides, (Paris, O. Doin et fils, 1913), by L. Picart (page images at HathiTrust; US access only)
• Theoretische Astronomie / (Braunschweig : F. Vieweg und Sohn, 1871), by Wilhelm Klinkerfues (page images at HathiTrust)
• Theorie der Bewegung der Himmelskörper : welche in Kegelschnitten die Sonne umlaufen / (Gotha : F. A. Perthes, 1877), by Carl Friedrich Gauss, trans. by Karl Haase (page images at HathiTrust)
• Application of Brouwer's artificial-satellite theory to computation of the state transition matrix / (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151], 1970), by George H. Born, James C. Kirkpatrick, Manned Spacecraft Center (U.S.), and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
• Method for determination of the accuracy of closed distant stationary orbits determined from range rate / (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151], 1970), by Alton P. Mayo, Langley Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
• Use of orbit-to-orbit shuttles for hyperbolic rendezvous with returning planetary spacecraft / (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151], 1971), by David R. Brooks (page images at HathiTrust; US access only)
• A comparison of astronomical and ballistic traditions in orbit computation / (Los Angeles : University of California, 1962), by Samuel Herrick (page images at HathiTrust)
• Astronomical. (Paris, Ill., 1903), by William H. Bauser (page images at HathiTrust)
• The computation of orbits / (Ann Arbor: Edwards Brothers, 1948), by Paul Herget (page images at HathiTrust)
• Die Gauss-Gibbssche Methode der Bahnbestimmung eines Himmelskörpers aus drei Beobachtungen / (Leipzig : W. Engelmann, 1905), by Johannes Frischauf (page images at HathiTrust; US access only)
• Über die Bestimmung einer elliptischen Bahn aus drei vollständigen Beobachtungen, (Leipzig, W. Engelmann, 1903), by J. Bauschinger, P. A. Hansen, and Johann Franz Encke (page images at HathiTrust; US access only)
• Periodic orbits, (Washington, Carnegie Institution of Washington, 1920), by Forest Ray Moulton, W. D. MacMillan, William Raymond Longley, Frank Loxley Griffin, Thomas Buck, and Daniel Buchanan (page images at HathiTrust)
• An economical semi-analytical orbit theory for microcomputer applications / (Washington, D.C. : National Aeronautics and Space Administration, Scientific and Technical Information Division ; Springfield, Va. : For sale by the National Technical Information Service,), by R. A. Gordon and Goddard Space Flight Center (page images at HathiTrust)
• Researches in optimal rendezvous / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information [distributor], 1970), by W. Heine and Stanford University (page images at HathiTrust)
• On the high order effects in the methods of Krylov-Bogoliubov and Poincaré / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information, [1966]), by Peter Musen and Goddard Space Flight Center (page images at HathiTrust)
• Efficient planetary parking orbits with examples for Mars / (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Office of Technical Services, Dept. of Commerce], [1963]), by Roger W. Luidens, Brent A. Miller, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Preliminary studies of manned satellites wingless configuration : nonlifting / (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Office of Technical Services, Dept. of Commerce, 1962]), by Maxime A. Faget, James J. Buglia, Benjamine J. Garland, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• On the numerical theory of satellites with highly inclined orbits / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information, [1965]), by Peter Musen and Goddard Space Flight Center (page images at HathiTrust)
• Applicability of the control configured design approach to advanced earth orbital transportation systems / ([Washington] : National Aeronautics and Space Administration, Scientific and Technical Information Office ; Springfield, Va. : For sale by the National Technical Information Service, 1978), by United States. National Aeronautics and Space Administration. Scientific and Technical Information Office, Andrew K. Hepler, and Boeing Aerospace Company (page images at HathiTrust)
• A series solution for some periodic orbits in the restricted three-body problem according to the perturbation method / (Washington, D.C. : National Aeronautics and Space Administration : For sale by the Office of Technical Services, Dept. of Commerce, [1964]), by Su-Shu Huang and Goddard Space Flight Center (page images at HathiTrust)
• Determination of mean orbital elements from initial conditions for a vinti ballistic trajectory / (Washington, D.C. : National Aeronautics and Space Administration ; [For sale by the Clearinghouse for Federal Scientific and Technical, Springfield, Virginia 22151], 1970), by Harvey Walden, Goddard Space Flight Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Guidance and control payload support requirements for a planetary cartographic probe / (Washington, D.C. : National Aeronautics and Space Administration ; [For sale by the Clearinghouse for Federal Scientific and Technical, Springfield, Virginia 20230], 1970), by Saul Moskowitz, Electronics Research Center (U.S.), and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Minimum thrust for correcting Keplerian orbits with application to interplanetary guidance / (Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information, [1968]), by Frederick W. Boltz, United States National Aeronautics and Space Administration, and Ames Research Center (page images at HathiTrust)
• Low-perigee aerodynamic heating during orbital flight of an Atmospheric Explorer / (Washington : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the National Technical Information Service, 1976), by Paul S. Caruso, Charles R. Naegeli, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• A semi-analytic theory for the motion of a lunar satellite [electronic resource] / (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Office of Technical Services, Dept. of Commerce], [1969]), by Giorgio E. O. Giacaglia, Theodore L. Felsentreger, James P. Murphy, Goddard Space Flight Center, Yale University, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Survey of a second class of orbits in the earth-moon field : X[subscript R] = 1.00 / (Washington, D.C. : National Aeronautics and Space Administration ; [Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information, 1969]), by Rudolf F. Hoelker, United States National Aeronautics and Space Administration, and Electronics Research Center (U.S.) (page images at HathiTrust)
• The utilization of halo orbits in advanced lunar operations / (Washington, D.C. : National Aeronautics and Space Administration, 1971), by Robert W. Farquhar and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Theory of the motion of the heavenly bodies moving about the sun in conic sections: a translation of Gauss's "Theoria motus." With an appendix. (Boston, Little, Brown and company, 1857), by Carl Friedrich Gauss, trans. by Charles Henry Davis (page images at HathiTrust)
• A class of asymptotic orbits in the problem of three bodies ... ([Baltimore, 1916]), by Lloyd Arthur Heber Warren (page images at HathiTrust)
• Theoretical astronomy relating to the motions of the heavenly bodies revolving aroung the sun in accordance with the law of universal gravitation, embracing a systematic derivation of the formulœ for the calculation of the geocentric and heliocentric places, for the determination of the orbits of planets and comets, for the correction of approximate elements, and for the computations of special perturbations; together with the theory of the combination of observations and the method of least squares. With numerical examples and auxiliary tables. (Philadelphia, J.B. Lippincott & Co.; [etc., etc.], 1868), by James C. Watson (page images at HathiTrust)
• Theorie phisico-mathématique de l'organisation des mondes, ou systemes planétaires. (Paris : Crapart, Caille et Ravier, 1805), by P. F. Lancelin (page images at HathiTrust)
• Ueber das problem der bahnverbesserung, (Berlin, F. Dümmlers verlagsbuchhandlung, 1903), by J. Bauschinger (page images at HathiTrust; US access only)
• Expansions in elliptic motion. (Washington, U.S. Govt. Print. Off., 1965 [i.e. 1966]), by Milton P Jarnagin (page images at HathiTrust; US access only)
• A manual method for control of the thrust axis during planar ascent from the lunar surface to a circular orbit / (Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia], 1966), by Herman S. Fletcher, L. Keith Barker, and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
• Studio sulla variazione della latitudine di Collurania. Il metodo di Tietjen per la correzione dell' orbita di un pianeta. Applicazione del metodo di Tietjen a Vincentina (366) e Vaticana (416). (Collurania [Roma, Tip. dell' Unione cooperative editrice], 1900), by Giovanni Boccardi (page images at HathiTrust; US access only)
• Feasibility, parametric design, and comparative analysis of an unguided solid fuel rocket vehicle with solar orbit, earth probe, and re-entry mission capabilities / (Washington, D.C. : National Aeronautics and Space Administration, 1967), by T. C. Walker (page images at HathiTrust; US access only)
• Theoretische astronomie / (Braunschweig : F. Vieweg un sohn, 1899), by Wilhelm Klinkerfues and Hugo Buchholz (page images at HathiTrust; US access only)
• On the determination of elliptic orbits from three complete observations / ([Washington : National Academy of Sciences : Government Printing Office, 1889]), by J. Willard Gibbs and National Academy of Sciences (U.S.) (page images at HathiTrust)
• Indeterminate cases in the orbit problem (1921]), by Priscilla Fairfield (page images at HathiTrust; US access only)
• Theoria motus corporum coelestium in sectionibus conicis solem ambientium / auctore Carolo Friderico Gauss. (Gothae : F. A. Perthes, 1877), by Carl Friedrich Gauss and Ernst Iulius Schering (page images at HathiTrust)
• Explanation of a method for computing the absolute disturbances of the heavenly bodies, which move in orbits of any inclination and elliptic eccentricity whatever. ([n.p.], 1843), by P. A. Hansen (page images at HathiTrust)
• Etude sur les orbites hyperboliques et sur l'existence probable d'une réfraction stellaire / (Paris : Gauthiers-Villars, 1880), by Philippe Breton (page images at HathiTrust)
• Theoretical astronomy, relating to the motions of the heavenly bodies revolving around the sun in accordance with the law of universal gravitation, with numerical examples and auxiliary tables, (Philadelphia, J. B. Lippincott, 1900), by James C. Watson (page images at HathiTrust)
• Über die bestimmung einer elliptischen bahn aus drei vollständigen beobachtungen, (Leipzig, Akademische verlagsgesellschaft m.b.h., [n.d.]), by P. A. Hansen and Johann Franz Encke, ed. by J. Bauschinger (page images at HathiTrust; US access only)
• Theoretical astronomy, relating to the motions of the heavenly bodies, (Philadelphia : Lippincott, 1892), by James C. Watson (page images at HathiTrust)
• Tafel zur Berechnung der Wahren Anomalie für Excentricitätswinkel von O° bis 20° 20' nebst einer Tafel zur genäherten Auflösung der Kepler'schen Gleichung. (Berlin, A. W. Schade's Buchdr. (L Schade), 1892), by Astronomisches Rechen-Institut zu Berlin-Dahlem (page images at HathiTrust)
• Abhandlungen aus der mathematischen Astronomie. (Halle a S., H.W. Schmidt, 1890), by Karl Israel-Holtzart (page images at HathiTrust)
• Die Unhaltbarkeit der sogenannten Methode der kleinsten Quadrate und die Neugestaltung der endgültigen Bahnbestimmungen der Sterne. (Bonn, 1893), by H. Kloock (page images at HathiTrust)
• Elementare Darstellung der Planetenbahnen durch Konstruktion und Rechnung, (Berlin, R. Gaertner, 1886), by Hermann Thurein (page images at HathiTrust)

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