%0 Journal Article %A Ya. I. Zhitomirskii %T Uniqueness classes of solutions of the Cauchy problem for linear %J Izvestiya. Mathematics %D 1967 %P 737-756 %V 1 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1967_1_4_a1/ %G en %F IM2_1967_1_4_a1