TY  - JOUR
AU  - R. S. Sadyrkhanov
TI  - Some properties of finite-to-one covering maps and their applications
JO  - Doklady Akademii Nauk
PY  - 1981
SP  - 44
EP  - 49
VL  - 259
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1981_259_1_a9/
LA  - ru
ID  - DAN_1981_259_1_a9
ER  -