@article{RMF_2007_82_4_a9,
     author = {T\"opfer, Pavel},
     title = {Mezin\'arodn{\'\i} olympi\'ada v informatice {IOI} 2007},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {49--51},
     year = {2007},
     volume = {82},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2007_82_4_a9/}
}