TY - JOUR AU - V. A. Bryukhanov TI - A certain class of elliptic equations that degenerate on the boundry JO - Differencialʹnye uravneniâ PY - 1973 SP - 166 EP - 168 VL - 9 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1973_9_1_a19/ LA - ru ID - DE_1973_9_1_a19 ER -