@article{1195526104, author = {Numakura, Katsumi}, title = {A note on the structure of commutative semigroups}, journal = {Proc. Japan Acad.}, volume = {30}, number = {10}, year = {1954}, pages = { 262-265}, language = {en}, url = {http://dml.mathdoc.fr/item/1195526104} }
Numakura, Katsumi. A note on the structure of commutative semigroups. Proc. Japan Acad., Tome 30 (1954) no. 10, pp. 262-265. http://gdmltest.u-ga.fr/item/1195526104/