@article{RMF_2008_83_2_a8,
     author = {Zhouf, Jaroslav},
     title = {\'Ust\v{r}edn{\'\i} kolo 57. ro\v{c}n{\'\i}ku {Matematick\'e} olympi\'ady kategorie {A}},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {49--51},
     year = {2008},
     volume = {83},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2008_83_2_a8/}
}