TY - JOUR AU - F. T. Baranovskii TI - Differential properties of the solution of a mixed problem for a strongly degenerate hyperbolic equation JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1964 SP - 17 EP - 27 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1964_3_a2/ LA - ru ID - IVM_1964_3_a2 ER -