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@article{MOMA_1991__112_3_178547, author = {Karl-Hermann Neeb}, title = {Objects {Dual} to {Subsemigroups} of {Groups.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {303--322}, publisher = {mathdoc}, volume = {112}, number = {3}, year = {1991}, zbl = {0737.22002}, url = {http://geodesic.mathdoc.fr/item/MOMA_1991__112_3_178547/} }
Karl-Hermann Neeb. Objects Dual to Subsemigroups of Groups.. Monatshefte für Mathematik, Tome 112 (1991) no. 3, pp. 303-322. http://geodesic.mathdoc.fr/item/MOMA_1991__112_3_178547/