@article{RMF_2009_84_1_a12,
     author = {Hor\'ak, Karel},
     title = {49. {Mezin\'arodn{\'\i}} matematick\'a olympi\'ada},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {53--57},
     year = {2009},
     volume = {84},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2009_84_1_a12/}
}