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@article{JRAM_1982__334_152449, author = {Horst Kn\"orrer}, title = {Geodesics on quadrics and a mechanical problem of {C.} {Neumann.}}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {69--78}, publisher = {mathdoc}, volume = {334}, year = {1982}, zbl = {0478.58014}, url = {http://geodesic.mathdoc.fr/item/JRAM_1982__334_152449/} }
Horst Knörrer. Geodesics on quadrics and a mechanical problem of C. Neumann.. Journal für die reine und angewandte Mathematik, Tome 334 (1982), pp. 69-78. http://geodesic.mathdoc.fr/item/JRAM_1982__334_152449/