%0 Journal Article %A L. E. Ward %T A general fixed point theorem %J Colloquium Mathematicum %D 1966 %P 243-251 %V 15 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-15-2-243-251/ %R 10.4064/cm-15-2-243-251 %G en %F 10_4064_cm_15_2_243_251