%0 Journal Article
%A A. M. Rubinov
%T Approximation of multivalued mappings and the differentiability of
%J Doklady Akademii Nauk
%D 1987
%P 269-272
%V 292
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1987_292_2_a1/
%G ru
%F DAN_1987_292_2_a1