%0 Journal Article %A Pastijn, Francis %T Essential normal and conjugate extensions of inverse semigroups %J Glasgow mathematical journal %D 1982 %P 123-130 %V 23 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500004894/ %R 10.1017/S0017089500004894 %F 10_1017_S0017089500004894