@article{MASLO_1994_44_3_a6,
     author = {Pond\v{e}l{\'\i}\v{c}ek, Bed\v{r}ich},
     title = {On generalized conditionally commutative semigroups},
     journal = {Mathematica slovaca},
     pages = {359--364},
     year = {1994},
     volume = {44},
     number = {3},
     mrnumber = {1307324},
     zbl = {0816.20058},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1994_44_3_a6/}
}