@article{RMF_2009__84_4_a9,
     author = {T\"opfer, Pavel},
     title = {Mezin\'arodn{\'\i} olympi\'ada v informatice {IOI} 2009},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {40--42},
     publisher = {mathdoc},
     volume = {84},
     number = {4},
     year = {2009},
     language = {cz},
     url = {https://geodesic-test.mathdoc.fr/item/RMF_2009__84_4_a9/}
}