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@article{SF_1992__45_3_135181, author = {A. Nagy}, title = {On the structure of (m,n)-commutative semigroups.}, journal = {Semigroup forum}, pages = {183--190}, publisher = {mathdoc}, volume = {45}, number = {3}, year = {1992}, zbl = {0789.20070}, url = {http://geodesic.mathdoc.fr/item/SF_1992__45_3_135181/} }
A. Nagy. On the structure of (m,n)-commutative semigroups.. Semigroup forum, Tome 45 (1992) no. 3, pp. 183-190. http://geodesic.mathdoc.fr/item/SF_1992__45_3_135181/