%0 Journal Article %A Nhu Nguyen %A Katsuro Sakai %A Raymond Wong %T Spaces of retractions which are homeomorphic to Hilbert space %J Fundamenta Mathematicae %D 1990 %P 45-52 %V 136 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-136-1-45-52/ %R 10.4064/fm-136-1-45-52 %G en %F 10_4064_fm_136_1_45_52