TY - JOUR AU - N. G. Shakhova TI - Nilpotency class of a~free group of the product of certain varieties JO - Matematičeskie zametki PY - 1976 SP - 91 EP - 98 VL - 19 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1976_19_1_a9/ LA - ru ID - MZM_1976_19_1_a9 ER -