TY  - JOUR
AU  - V. P. Klassen
TI  - The occurrence problem for a certain class of groups
JO  - Algebra i logika
PY  - 1970
SP  - 306
EP  - 312
VL  - 9
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1970_9_3_a4/
LA  - ru
ID  - AL_1970_9_3_a4
ER  -