@article{PMFA_1975_20_3_a8,
     author = {Vy\v{s}{\'\i}n, Jan},
     title = {Co nov\'eho p\v{r}in\'a\v{s}{\'\i} {Nico?}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {164--169},
     year = {1975},
     volume = {20},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1975_20_3_a8/}
}