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@article{SF_1993__46_1_135211, author = {B. Billhardt}, title = {On a wreath product embedding for regular semigroups.}, journal = {Semigroup forum}, pages = {62--72}, publisher = {mathdoc}, volume = {46}, number = {1}, year = {1993}, zbl = {0770.20025}, url = {http://geodesic.mathdoc.fr/item/SF_1993__46_1_135211/} }
B. Billhardt. On a wreath product embedding for regular semigroups.. Semigroup forum, Tome 46 (1993) no. 1, pp. 62-72. http://geodesic.mathdoc.fr/item/SF_1993__46_1_135211/