%0 Journal Article %A L. N. Prokopenko %T The uniqueness of the solution of the Cauchy problem for differential-operator equations %J Doklady Akademii Nauk %D 1963 %P 1030-1033 %V 148 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_148_5_a9/ %G ru %F DAN_1963_148_5_a9