%0 Journal Article %A G. G. Oniani %T On Possible Values of Upper and Lower Derivatives with Respect to Convex Differential Bases %J Matematičeskie zametki %D 2004 %P 762-775 %V 76 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2004_76_5_a11/ %G ru %F MZM_2004_76_5_a11