@article{SF_1981__23_134503,
     author = {F.P. Gagnon},
     title = {A representation theorem for {I-medial}  and for generalized inverse semigroups.},
     journal = {Semigroup forum},
     pages = {49--72},
     year = {1981},
     volume = {23},
     zbl = {0468.20054},
     url = {http://geodesic.mathdoc.fr/item/SF_1981__23_134503/}
}