TY - JOUR AU - D. V. Sivakov TI - On a problem of A. N. Tikhonov in a semibounded domain JO - Differencialʹnye uravneniâ PY - 1993 SP - 905 EP - 907 VL - 29 IS - 5 UR - http://geodesic.mathdoc.fr/item/DE_1993_29_5_a21/ LA - ru ID - DE_1993_29_5_a21 ER -