%0 Journal Article %A V. F. Pták %A V. S. Retakh %T An abstract analog of an existence theorem for solutions of convolution equations %J Doklady Akademii Nauk %D 1974 %P 267-269 %V 216 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1974_216_2_a7/ %G ru %F DAN_1974_216_2_a7