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@article{IVM_1986_8_a9, author = {A. P. Norden}, title = {A~method of specifying a~surface and a~congruence}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {52--53}, publisher = {mathdoc}, number = {8}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1986_8_a9/} }
A. P. Norden. A~method of specifying a~surface and a~congruence. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1986), pp. 52-53. http://geodesic.mathdoc.fr/item/IVM_1986_8_a9/