@article{1195520304, author = {Sait\^o, T\^oru}, title = {Note on the lexicographic product of ordered semigroups}, journal = {Proc. Japan Acad.}, volume = {46}, number = {10}, year = {1970}, pages = { 413-416}, language = {en}, url = {http://dml.mathdoc.fr/item/1195520304} }
Saitô, Tôru. Note on the lexicographic product of ordered semigroups. Proc. Japan Acad., Tome 46 (1970) no. 10, pp. 413-416. http://gdmltest.u-ga.fr/item/1195520304/