%0 Journal Article
%A V. A. Nikiforov
%T Extension of a selection for a multivalued mapping, and the Eilenberg--Borsuk duality theorem
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1987
%P 57-59
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMUMM_1987_6_a11/
%G ru
%F VMUMM_1987_6_a11