%0 Journal Article %A A. M. Nakhushev %T On the theory of fractional calculus %J Differencialʹnye uravneniâ %D 1988 %P 313-324 %V 24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1988_24_2_a15/ %G ru %F DE_1988_24_2_a15