TY  - JOUR
AU  - V. A. Nikiforov
TI  - Extension of a selection for a multivalued mapping, and the Eilenberg--Borsuk duality theorem
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1987
SP  - 57
EP  - 59
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1987_6_a11/
LA  - ru
ID  - VMUMM_1987_6_a11
ER  -