@article{SF_1972__4_133903, author = {T. Tamura}, title = {Note of the greatest'semilattice decomposition of a semigroup.}, journal = {Semigroup forum}, pages = {255--261}, publisher = {mathdoc}, volume = {4}, year = {1972}, zbl = {0261.20058}, url = {http://geodesic.mathdoc.fr/item/SF_1972__4_133903/} }