%0 Journal Article %A Hung, H. H. %T A Contribution to the Theory of Metrization %J Canadian journal of mathematics %D 1977 %P 1145-1151 %V 29 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-113-6/ %R 10.4153/CJM-1977-113-6 %F 10_4153_CJM_1977_113_6