@article{MASLO_1957_7_3_a4,
     author = {Kolibiarov\'a, Blanka},
     title = {O pologrup\'ach, ktor\'ych ka\v{z}d\'a \v{c}iasto\v{c}n\'a pologrupa m\'a \v{l}av\'u jednotku},
     journal = {Mathematica slovaca},
     pages = {177--182},
     year = {1957},
     volume = {7},
     number = {3},
     mrnumber = {0100643},
     language = {sk},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1957_7_3_a4/}
}