@article{MASLO_1961_11_4_a6,
     author = {Kolibiarov\'a, Blanka},
     title = {O pologrup\'ach, ktor\'ych ka\v{z}d\'y \v{l}av\'y hlavn\'y ide\'al obsahuje jednotku},
     journal = {Mathematica slovaca},
     pages = {275--281},
     year = {1961},
     volume = {11},
     number = {4},
     zbl = {0207.33002},
     language = {sk},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1961_11_4_a6/}
}