TY  - JOUR
AU  - A. A. Klyachko
TI  - Free subgroups of one-relator relative presentations
JO  - Algebra i logika
PY  - 2007
SP  - 290
EP  - 298
VL  - 46
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_2007_46_3_a1/
LA  - ru
ID  - AL_2007_46_3_a1
ER  -