TY - JOUR AU - S. A. Gurchenkov TI - Varieties of $l$-groups with identity $[x^p,y^p]=e$ are JO - Algebra i logika PY - 1984 SP - 27 EP - 47 VL - 23 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_1984_23_1_a1/ LA - ru ID - AL_1984_23_1_a1 ER -