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@article{DAN_1963_152_5_a13, author = {V. D. Tret'yakov}, title = {On line geometry in three-dimensional {Klein} spaces}, journal = {Doklady Akademii Nauk}, pages = {1068--1070}, publisher = {mathdoc}, volume = {152}, number = {5}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_152_5_a13/} }
V. D. Tret'yakov. On line geometry in three-dimensional Klein spaces. Doklady Akademii Nauk, Tome 152 (1963) no. 5, pp. 1068-1070. http://geodesic.mathdoc.fr/item/DAN_1963_152_5_a13/