@article{PMFA_1958__3_5_a5,
     author = {Veselka, Josef},
     title = {K ot\'azce zachov\'an{\'\i} parity},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {542--559},
     publisher = {mathdoc},
     volume = {03},
     number = {5},
     year = {1958},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1958__3_5_a5/}
}