%0 Journal Article %A Hajarnavis, C. R. %T One sided invertibility and localisation %J Glasgow mathematical journal %D 1992 %P 333-339 %V 34 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008909/ %R 10.1017/S0017089500008909 %F 10_1017_S0017089500008909