%0 Journal Article %A R. Almeida %T A mean value theorem for internal functions and an estimation for the differential mean point %J Novi Sad Journal of Mathematics %D 2008 %P 57-64 %V 38 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/NSJOM_2008_38_2a_7/ %F NSJOM_2008_38_2a_7