TY - JOUR AU - B. A. Magadeev TI - Group classification of nonlinear evolution equations JO - Algebra i analiz PY - 1993 SP - 141 EP - 156 VL - 5 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AA_1993_5_2_a5/ LA - ru ID - AA_1993_5_2_a5 ER -