Books by R. Heger:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Heger, R. (Richard), 1846-1919: Analytische Geometrie auf der Kugel (G. J. Göschen, 1908) (page images at HathiTrust; US access only)- Heger, R. (Richard), 1846-1919: Die Erhaltung der Arbeit. (Helwing, 1896) (page images at HathiTrust)
- Heger, R. (Richard), 1846-1919: Elemente der analytischen Geometrie in homogenen Coordinaten (F. Vieweg und sohn, 1872) (page images at HathiTrust)
- Heger, R. (Richard), 1846-1919: Elemente der analytischen Geometrie in homogenen Coordinaten. (F. Wiewegund Sohn, 1872) (page images at HathiTrust)
- Heger, R. (Richard), 1846-1919: Handbuch der mathematik (E. Trewendt, 1879), also by Oskar Xaver Schlömilch and Friedrich Reidt (page images at HathiTrust)
- Heger, R. (Richard), 1846-1919: Lehrbuch der analytischen geometrie (B.G. Teubner, 1898), also by O. Fort and Oskar Xaver Schlömilch (page images at HathiTrust; US access only)
Find more by R. Heger at your library, or elsewhere.