%0 Journal Article
%A Petrich, Mario
%A Rankin, Stuart A.
%T Harmonic inverse semigroups
%J Glasgow mathematical journal
%D 1989
%P 335-351
%V 31
%N 3
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007904/
%R 10.1017/S0017089500007904
%F 10_1017_S0017089500007904