@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/}
}