TY - JOUR AU - Yu. V. Sidorov TI - The Cauchy problem for an equation of the first order with respect to time, with variable coefficients JO - Doklady Akademii Nauk PY - 1967 SP - 1012 EP - 1014 VL - 177 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1967_177_5_a6/ LA - ru ID - DAN_1967_177_5_a6 ER -