%0 Journal Article %A Gilles Fournier %A Donald Violette %T A fixed point theorem for a class of multi-valued continuously differentiable maps %J Annales Polonici Mathematici %D 1986 %P 381-402 %V 47 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-47-3-381-402/ %R 10.4064/ap-47-3-381-402 %G en %F 10_4064_ap_47_3_381_402