%0 Journal Article %A A. D. Iskanderov %T On a mixed problem for loaded quasi-linear equations of hyperbolic type %J Doklady Akademii Nauk %D 1971 %P 1237-1239 %V 199 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_199_6_a4/ %G ru %F DAN_1971_199_6_a4