@article{GDZPPN001249126, title = {Extensions of homomorphisms to dense extensions of semigroups.}, journal = {Semigroup forum}, volume = {7}, year = {1974}, pages = {153-170}, zbl = {0255.20046}, url = {http://dml.mathdoc.fr/item/GDZPPN001249126} }
Reilly, N.R. Extensions of homomorphisms to dense extensions of semigroups.. Semigroup forum, Tome 7 (1974) pp. 153-170. http://gdmltest.u-ga.fr/item/GDZPPN001249126/