TY - JOUR AU - I. M. Petrushko TI - On boundary values of solutions of elliptic equations degenerating on the boundary JO - Sbornik. Mathematics PY - 1989 SP - 243 EP - 262 VL - 64 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1989_64_1_a14/ LA - en ID - SM_1989_64_1_a14 ER -