@article{MASLO_1967_17_2_a6,
     author = {Kolibiarov\'a, Blanka},
     title = {A {Note} on the {Structure} of {Some} {Types} of {Semigroups}},
     journal = {Mathematica slovaca},
     pages = {131--141},
     year = {1967},
     volume = {17},
     number = {2},
     mrnumber = {0228605},
     zbl = {0153.34602},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1967_17_2_a6/}
}