%0 Journal Article %A N. N. Kuznetsov %T A weak solution of the Cauchy problem for a first order equation with two independent variables %J Doklady Akademii Nauk %D 1967 %P 268-271 %V 177 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_177_2_a4/ %G ru %F DAN_1967_177_2_a4