TY - JOUR AU - V. P. Didenko TI - Certain boundary value problems for a multi-dimensional equation of mixed type JO - Differencialʹnye uravneniâ PY - 1973 SP - 172 EP - 174 VL - 9 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1973_9_1_a21/ LA - ru ID - DE_1973_9_1_a21 ER -