@misc{RMF_2018_93_4_a8,
     title = {60.~ro\v{c}n{\'\i}k {Fyzik\'aln{\'\i}} olympi\'ady, \'ulohy 1. kola kategori{\'\i} {E} a {F}},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {39--44},
     year = {2018},
     volume = {93},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2018_93_4_a8/}
}