TY - JOUR AU - A. I. Yanushauskas TI - Some cases of overdetermination of a problem on the oblique derivative JO - Differencialʹnye uravneniâ PY - 1968 SP - 102 EP - 109 VL - 4 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1968_4_1_a8/ LA - ru ID - DE_1968_4_1_a8 ER -