@article{10_21136_CMJ_1972_101121,
     author = {Satyanarayana, M.},
     title = {Commutative primary semigroups},
     journal = {Czechoslovak Mathematical Journal},
     pages = {509--516},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1972},
     doi = {10.21136/CMJ.1972.101121},
     mrnumber = {0308304},
     zbl = {0248.20072},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1972.101121/}
}