@article{PMFA_1995_40_2_a4,
     author = {Cahn, Robert W.},
     title = {Kouzlo neuspo\v{r}\'adanosti},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {100--105},
     year = {1995},
     volume = {40},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1995_40_2_a4/}
}