@misc{RMF_2007__82_4_a3,
     title = {OPRAVA: {Zad\'an{\'\i}} \'uloh 49. ro\v{c}n{\'\i}ku {Fyzik\'aln{\'\i}} olympi\'ady, \'ulohy 1. kola, kategorie {B}},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {20--20},
     publisher = {mathdoc},
     volume = {82},
     number = {4},
     year = {2007},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/RMF_2007__82_4_a3/}
}