@article{10_21136_CMJ_1962_100503,
     author = {Petrich, Mario},
     title = {Prime ideals of the cartesian product of two semigroups},
     journal = {Czechoslovak Mathematical Journal},
     pages = {150--152},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1962},
     doi = {10.21136/CMJ.1962.100503},
     mrnumber = {0140597},
     zbl = {0124.25702},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1962.100503/}
}