%0 Journal Article %A A. N. Kochubei %T Fundamental solutions of operator-differential equations %J Differencialʹnye uravneniâ %D 1977 %P 1588-1597 %V 13 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_9_a4/ %G ru %F DE_1977_13_9_a4