Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1970_194_1_a5, author = {B. D. Malyi}, title = {Normal classes of smooth immersions and imbeddings}, journal = {Doklady Akademii Nauk}, pages = {28--30}, publisher = {mathdoc}, volume = {194}, number = {1}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_194_1_a5/} }
B. D. Malyi. Normal classes of smooth immersions and imbeddings. Doklady Akademii Nauk, Tome 194 (1970) no. 1, pp. 28-30. http://geodesic.mathdoc.fr/item/DAN_1970_194_1_a5/