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@article{SF_1993__47_2_135285, author = {L.M. Wang}, title = {Ideal nil-extensions of semigroups with semimodular congruence lattices.}, journal = {Semigroup forum}, pages = {353--358}, publisher = {mathdoc}, volume = {47}, number = {2}, year = {1993}, zbl = {0789.20068}, url = {http://geodesic.mathdoc.fr/item/SF_1993__47_2_135285/} }
L.M. Wang. Ideal nil-extensions of semigroups with semimodular congruence lattices.. Semigroup forum, Tome 47 (1993) no. 2, pp. 353-358. http://geodesic.mathdoc.fr/item/SF_1993__47_2_135285/