%0 Journal Article %A Franklin, S. P. %A Kohli, J. K. %T On Open Extensions of Maps %J Canadian journal of mathematics %D 1970 %P 691-696 %V 22 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-077-5/ %R 10.4153/CJM-1970-077-5 %F 10_4153_CJM_1970_077_5