@article{1195523809, author = {Tamura, Takayuki}, title = {Note on a semigroup having no proper subsemigroup}, journal = {Proc. Japan Acad.}, volume = {37}, number = {10}, year = {1961}, pages = { 72-74}, language = {en}, url = {http://dml.mathdoc.fr/item/1195523809} }
Tamura, Takayuki. Note on a semigroup having no proper subsemigroup. Proc. Japan Acad., Tome 37 (1961) no. 10, pp. 72-74. http://gdmltest.u-ga.fr/item/1195523809/