@article{10_21136_CMJ_1981_101732,
     author = {Pond\v{e}l{\'\i}\v{c}ek, Bed\v{r}ich},
     title = {On representations of tolerance ordered commutative semigroups},
     journal = {Czechoslovak Mathematical Journal},
     pages = {153--158},
     year = {1981},
     volume = {31},
     number = {1},
     doi = {10.21136/CMJ.1981.101732},
     mrnumber = {604121},
     zbl = {0469.20035},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1981.101732/}
}