@article{PMFA_1964__9_5_a2,
     author = {Havl{\'\i}\v{c}ek, Karel},
     title = {O zach\'azen{\'\i} s matematikou},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {299--301},
     publisher = {mathdoc},
     volume = {09},
     number = {5},
     year = {1964},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1964__9_5_a2/}
}