TY - JOUR AU - T. Sh. Kal'menov TI - The characteristic Cauchy problem for a certain class of degenerate hyperbolic equations JO - Differencialʹnye uravneniâ PY - 1973 SP - 84 EP - 96 VL - 9 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1973_9_1_a8/ LA - ru ID - DE_1973_9_1_a8 ER -