TY  - JOUR
AU  - V. I. Ponomarev
TI  - On metric spaces and continuous mappings associated with them
JO  - Doklady Akademii Nauk
PY  - 1963
SP  - 1013
EP  - 1016
VL  - 153
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1963_153_5_a6/
LA  - ru
ID  - DAN_1963_153_5_a6
ER  -