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@article{DAN_1958_121_1_a9, author = {G. F. Laptev}, title = {Hypersurface in the space of projective connection}, journal = {Doklady Akademii Nauk}, pages = {41--44}, publisher = {mathdoc}, volume = {121}, number = {1}, year = {1958}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1958_121_1_a9/} }
G. F. Laptev. Hypersurface in the space of projective connection. Doklady Akademii Nauk, Tome 121 (1958) no. 1, pp. 41-44. http://geodesic.mathdoc.fr/item/DAN_1958_121_1_a9/