TY  - JOUR
AU  - V. M. Bykov
TI  - On closed coverings of manifolds and linking of cycles
JO  - Doklady Akademii Nauk
PY  - 1973
SP  - 1027
EP  - 1030
VL  - 211
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1973_211_5_a3/
LA  - ru
ID  - DAN_1973_211_5_a3
ER  -