TY  - JOUR
AU  - V. S. Monakhov
TI  - The product of two groups, one of which contains a~cyclic subgroup of index $\le2$
JO  - Matematičeskie zametki
PY  - 1974
SP  - 285
EP  - 295
VL  - 16
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1974_16_2_a12/
LA  - ru
ID  - MZM_1974_16_2_a12
ER  -