@article{PMFA_2011__56_1_a7,
     author = {Volf, Ivo and Vyb{\'\i}ral, Bohumil},
     title = {\v{C}ty\v{r}icet let mezin\'arodn{\'\i} fyzik\'aln{\'\i} olympi\'ady},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {64--73},
     publisher = {mathdoc},
     volume = {56},
     number = {1},
     year = {2011},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2011__56_1_a7/}
}