%0 Journal Article %A Blyth, T. S. %A McFadden, R. %T Unit orthodox semigroups %J Glasgow mathematical journal %D 1983 %P 39-42 %V 24 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500005036/ %R 10.1017/S0017089500005036 %F 10_1017_S0017089500005036