TY  - JOUR
AU  - N. V. Velichko
TI  - Extension of mappings of toplogical spaces
JO  - Doklady Akademii Nauk
PY  - 1967
SP  - 1255
EP  - 1258
VL  - 177
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1967_177_6_a0/
LA  - ru
ID  - DAN_1967_177_6_a0
ER  -