Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1987_292_2_a1, author = {A. M. Rubinov}, title = {Approximation of multivalued mappings and the differentiability of}, journal = {Doklady Akademii Nauk}, pages = {269--272}, publisher = {mathdoc}, volume = {292}, number = {2}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1987_292_2_a1/} }
A. M. Rubinov. Approximation of multivalued mappings and the differentiability of. Doklady Akademii Nauk, Tome 292 (1987) no. 2, pp. 269-272. http://geodesic.mathdoc.fr/item/DAN_1987_292_2_a1/