TY - JOUR AU - E. I. Timoshenko TI - Using Fox Derivatives in Treating Groups of the Form $F/[R',F]$ JO - Algebra i logika PY - 2006 SP - 114 EP - 125 VL - 45 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_2006_45_1_a5/ LA - ru ID - AL_2006_45_1_a5 ER -