@article{CMUC_1978__19_1_a2,
     author = {Luedeman, John K. and McMorris, F. R. and Sim, Soon Kiong},
     title = {Semigroups for which every totally irreducible $S$-system is injective},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {27--35},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1978},
     mrnumber = {0476895},
     zbl = {0382.20055},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1978__19_1_a2/}
}