TY - JOUR AU - A. I. Yanushauskas TI - An application of degenerate equations to the investigation of the oblique derivative problem JO - Differencialʹnye uravneniâ PY - 1969 SP - 81 EP - 90 VL - 5 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1969_5_1_a4/ LA - ru ID - DE_1969_5_1_a4 ER -