@article{MASLO_1956_6_3_a3,
     author = {Schwarz, \v{S}tefan},
     title = {O pologrup\'ach spl\v{n}uj\'ucich zoslaben\'e pravidl\'a kr\'atenia},
     journal = {Mathematica slovaca},
     pages = {149--158},
     year = {1956},
     volume = {6},
     number = {3},
     mrnumber = {0091281},
     language = {sk},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1956_6_3_a3/}
}