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@article{IVM_1976_1_a13, author = {V. G. Deryagina}, title = {On the theory of two-dimensional surfaces in a~biplanar space $B_5$}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {116--119}, publisher = {mathdoc}, number = {1}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1976_1_a13/} }
V. G. Deryagina. On the theory of two-dimensional surfaces in a~biplanar space $B_5$. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (1976), pp. 116-119. http://geodesic.mathdoc.fr/item/IVM_1976_1_a13/