@article{SF_1978__16_134293,
     author = {S. Madhavan},
     title = {Some results on generalized inverse semigroups.},
     journal = {Semigroup forum},
     pages = {355--368},
     year = {1978},
     volume = {16},
     zbl = {0395.20039},
     url = {http://geodesic.mathdoc.fr/item/SF_1978__16_134293/}
}