@article{100607, author = {Mario Petrich}, title = {On the structure of a class of commutative semigroups}, journal = {Czechoslovak Mathematical Journal}, volume = {14}, year = {1964}, pages = {147-153}, zbl = {0143.03403}, mrnumber = {0166284}, language = {en}, url = {http://dml.mathdoc.fr/item/100607} }
Petrich, Mario. On the structure of a class of commutative semigroups. Czechoslovak Mathematical Journal, Tome 14 (1964) pp. 147-153. http://gdmltest.u-ga.fr/item/100607/
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