TY - JOUR AU - K. N. Ponomarev TI - Factor morphisms and centroids of locally nilpotent groups JO - Algebra i logika PY - 2011 SP - 42 EP - 67 VL - 50 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_2011_50_1_a2/ LA - ru ID - AL_2011_50_1_a2 ER -