@article{MASLO_1961_11_1_a7,
     author = {Hrmov\'a, Ren\'ata},
     title = {Pologrupy, v ktor\'ych ka\v{z}d\'y \v{l}av\'y vlastn\'y ide\'al je grupou},
     journal = {Mathematica slovaca},
     pages = {75--80},
     year = {1961},
     volume = {11},
     number = {1},
     zbl = {0211.04001},
     language = {sk},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1961_11_1_a7/}
}