@article{10_21136_CMJ_1986_102082,
     author = {Johnson, E. W.},
     title = {Primary factorization in semigroups},
     journal = {Czechoslovak Mathematical Journal},
     pages = {180--184},
     publisher = {mathdoc},
     volume = {36},
     number = {2},
     year = {1986},
     doi = {10.21136/CMJ.1986.102082},
     mrnumber = {831306},
     zbl = {0609.20039},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1986.102082/}
}