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@article{SF_1974__6_133971, author = {N.R. Reilly}, title = {Extensions of homomorphisms to dense extensions of semigroups.}, journal = {Semigroup forum}, pages = {153--170}, publisher = {mathdoc}, volume = {6}, year = {1974}, zbl = {0255.20046}, url = {http://geodesic.mathdoc.fr/item/SF_1974__6_133971/} }
N.R. Reilly. Extensions of homomorphisms to dense extensions of semigroups.. Semigroup forum, Tome 6 (1974), pp. 153-170. http://geodesic.mathdoc.fr/item/SF_1974__6_133971/