TY  - JOUR
AU  - R. L. Frum-Ketkov
TI  - The behaviour of cycles not homologous to zero when a $n$-dimensional manifold is mapped into 

JO  - Doklady Akademii Nauk
PY  - 1958
SP  - 42
EP  - 44
VL  - 118
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1958_118_1_a10/
LA  - ru
ID  - DAN_1958_118_1_a10
ER  -