TY - JOUR AU - M. M. Sirazhudinov TI - New problems for general elliptic systems in the plane JO - Doklady Akademii Nauk PY - 1995 SP - 19 EP - 21 VL - 343 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1995_343_1_a5/ LA - ru ID - DAN_1995_343_1_a5 ER -