@misc{RMF_2007_82_3_a9,
     title = {OPRAVA: {Zad\'an{\'\i}} \'uloh dom\'ac{\'\i}ho kola 57. ro\v{c}n{\'\i}ku {Matematick\'e} olympi\'ady kategorie {P}},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {56--56},
     year = {2007},
     volume = {82},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2007_82_3_a9/}
}