%0 Journal Article %A Curtis, D. W. %T Application of a Selection Theorem to Hyperspace Contractibility %J Canadian journal of mathematics %D 1985 %P 747-759 %V 37 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1985-040-7/ %R 10.4153/CJM-1985-040-7 %F 10_4153_CJM_1985_040_7