%0 Journal Article %A L. F. Karaul'naya %T The basis for an operational method of solving certain problems in mathematical physics %J Matematičeskie zametki %D 1973 %P 125-134 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1973_13_1_a15/ %G ru %F MZM_1973_13_1_a15