@article{GDZPPN001257234, title = {Ordered sets which support inverse semigroups : Three examples.}, journal = {Semigroup forum}, volume = {30}, year = {1984}, pages = {234-236}, zbl = {0549.06007}, url = {http://dml.mathdoc.fr/item/GDZPPN001257234} }
Schein, B.M.; Li, L. Ordered sets which support inverse semigroups : Three examples.. Semigroup forum, Tome 30 (1984) pp. 234-236. http://gdmltest.u-ga.fr/item/GDZPPN001257234/