TY  - JOUR
AU  - A. S. Schwarz
TI  - Some notions connected with that of the genus of a fibre space
JO  - Doklady Akademii Nauk
PY  - 1961
SP  - 301
EP  - 303
VL  - 136
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1961_136_2_a11/
LA  - ru
ID  - DAN_1961_136_2_a11
ER  -