@article{MASLO_1969__19_2_a10,
     author = {Fabrici, Imrich},
     title = {On {Periodic} {Semigroups} with {One-Sided} {Identities}},
     journal = {Mathematica slovaca},
     pages = {145--148},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {1969},
     mrnumber = {0306364},
     zbl = {0185.04402},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1969__19_2_a10/}
}