TY - JOUR AU - Yu. U. Tashmirzaev TI - A boundary value problem with general glueing conditions for an equation of mixed type with two lines of degeneracy JO - Differencialʹnye uravneniâ PY - 1979 SP - 132 EP - 141 VL - 15 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1979_15_1_a16/ LA - ru ID - DE_1979_15_1_a16 ER -