%0 Journal Article %A L. R. Volevich %A S. G. Gindikin %T Pseudo-differential operators and Cauchy problem for differential equations with variable coefficients %J Funkcionalʹnyj analiz i ego priloženiâ %D 1967 %P 8-25 %V 1 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1967_1_4_a1/ %G ru %F FAA_1967_1_4_a1