%0 Journal Article %A N. Temirgaliev %T Conditions under which higher derivatives belong to the classes $\varphi(L)$ %J Matematičeskie zametki %D 1973 %P 479-486 %V 14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1973_14_4_a2/ %G ru %F MZM_1973_14_4_a2