@article{DAN_1986_291_5_a9,
     author = {B. N. Pshenichnyi},
     title = {Theorems on implicit functions for multivalued mappings},
     journal = {Doklady Akademii Nauk},
     pages = {1063--1067},
     publisher = {mathdoc},
     volume = {291},
     number = {5},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_291_5_a9/}
}