Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1971_8_a1, author = {L. Ya. Berezina}, title = {Line-plane manifolds in~$E_n$}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {11--15}, publisher = {mathdoc}, number = {8}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1971_8_a1/} }
L. Ya. Berezina. Line-plane manifolds in~$E_n$. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1971), pp. 11-15. http://geodesic.mathdoc.fr/item/IVM_1971_8_a1/