@article{PMFA_2011__56_4_a6,
     author = {Volf, Ivo and K\v{r}{\'\i}\v{z}, Jan},
     title = {P\v{r}{\'\i}rodov\v{e}dn\'a olympi\'ada {Evropsk\'e} unie},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {334--338},
     publisher = {mathdoc},
     volume = {56},
     number = {4},
     year = {2011},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2011__56_4_a6/}
}