%0 Journal Article %A Ko, Eungil %T On hypo-Jordan operators %J Glasgow mathematical journal %D 2001 %P 411-418 %V 43 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S001708950103004X/ %R 10.1017/S001708950103004X %F 10_1017_S001708950103004X