%0 Journal Article %A Kazimierz Nikodem %T On some class of midconvex functions %J Annales Polonici Mathematici %D 1989 %P 145-151 %V 50 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-50-2-145-151/ %R 10.4064/ap-50-2-145-151 %G en %F 10_4064_ap_50_2_145_151