@article{DAN_1972_202_6_a8,
     author = {B. A. Pasynkov},
     title = {A factorization theorem for nonclosed sets},
     journal = {Doklady Akademii Nauk},
     pages = {1274--1276},
     year = {1972},
     volume = {202},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_202_6_a8/}
}