Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1970_7_a8, author = {N. M. Ostianu}, title = {Invariant framing of a~surface that carries a~net}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {72--82}, publisher = {mathdoc}, number = {7}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1970_7_a8/} }
N. M. Ostianu. Invariant framing of a~surface that carries a~net. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 7 (1970), pp. 72-82. http://geodesic.mathdoc.fr/item/IVM_1970_7_a8/