Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1977_12_a5, author = {V. S. Kim}, title = {The differential geometry of smooth nonregular surfaces}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {29--38}, publisher = {mathdoc}, number = {12}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1977_12_a5/} }
V. S. Kim. The differential geometry of smooth nonregular surfaces. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 12 (1977), pp. 29-38. http://geodesic.mathdoc.fr/item/IVM_1977_12_a5/