@article{MASLO_1981_31_3_a0,
     author = {Fabrici, Imrich},
     title = {Semigroups containing covered one-sided ideals},
     journal = {Mathematica slovaca},
     pages = {225--231},
     year = {1981},
     volume = {31},
     number = {3},
     mrnumber = {621913},
     zbl = {0465.20061},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1981_31_3_a0/}
}