@article{ARM_1978__14_4_a4,
     author = {Kope\v{c}ek, Old\v{r}ich},
     title = {Representation of ordered classes by classes of connected unary algebras},
     journal = {Archivum mathematicum},
     pages = {201--205},
     publisher = {mathdoc},
     volume = {14},
     number = {4},
     year = {1978},
     mrnumber = {512762},
     zbl = {0402.08005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1978__14_4_a4/}
}