TY  - JOUR
AU  - B. D. Gel'man
TI  - The topological characteristic of multivalued mappings and fixed-point theorems
JO  - Doklady Akademii Nauk
PY  - 1975
SP  - 524
EP  - 527
VL  - 221
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1975_221_3_a3/
LA  - ru
ID  - DAN_1975_221_3_a3
ER  -