TY - JOUR AU - B. V. Bazalii AU - I. I. Danilyuk AU - I. V. Skrypnik TI - Conference on Nonlinear Problems of Mathematical Physics JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1984 VL - 39 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1984_39_2_a48/ LA - ru ID - RM_1984_39_2_a48 ER -