TY - JOUR AU - M. M. Smirnov TI - A~problem with shift for an equation of mixed type of the second kind with two lines of degeneracy JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1982 SP - 68 EP - 75 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1982_3_a10/ LA - ru ID - IVM_1982_3_a10 ER -