Online Books by
John L. Heckscher
Books from the extended shelves:
Heckscher, John L.: LF transmitting antennas for a protected null-zone application (Air Force Cambridge Research Laboratories, Air Force Systems Command, United States Air Force, 1975), also by N. C. Gerson, Peter R. Franchi, Ralph J. McLain, and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
Heckscher, John L.: Measurement of ionic conductivity and temperature in the Apollo 15 plume (L.G. Hanscom Field, Massachusetts : Air Force Cambridge Research Laboratories, Air Force Systems Command, United States Air Force, 1973., 1973), also by Robert P. Pagliarulo and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
Heckscher, John L.: Tables of selected plane earth reflection coefficients, 5 to 100 kHz (L.G. Hanscom Field, Bedford, Massachusetts : Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force, 1968., 1968), also by Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
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