@article{MASLO_1968__18_2_a8,
     author = {\v{S}ulka, Robert},
     title = {On the {Nilpotency} in {Semigroups}},
     journal = {Mathematica slovaca},
     pages = {148--157},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {1968},
     mrnumber = {0242979},
     zbl = {0159.02701},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1968__18_2_a8/}
}