%0 Journal Article %A M. Medveď %T On minimal periods of functional-differential equations and difference inclusions %J Annales Polonici Mathematici %D 1991 %P 263-270 %V 54 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-54-3-263-270/ %R 10.4064/ap-54-3-263-270 %G en %F 10_4064_ap_54_3_263_270