%0 Journal Article %A Colebunders, Eva Lowen- %T Open and Proper Maps Characterized by Continuous Setvalued Maps %J Canadian journal of mathematics %D 1981 %P 929-936 %V 33 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-073-6/ %R 10.4153/CJM-1981-073-6 %F 10_4153_CJM_1981_073_6