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@article{DAN_1971_196_2_a7, author = {L. Z. Kruglyakov}, title = {On the projective differential geometry of families of multidimensional planes}, journal = {Doklady Akademii Nauk}, pages = {282--284}, publisher = {mathdoc}, volume = {196}, number = {2}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_196_2_a7/} }
L. Z. Kruglyakov. On the projective differential geometry of families of multidimensional planes. Doklady Akademii Nauk, Tome 196 (1971) no. 2, pp. 282-284. http://geodesic.mathdoc.fr/item/DAN_1971_196_2_a7/