@ARTICLE {,
title = {23. Medzinárodná olympiáda v informatike},
author = {Zeman, Marek},
journal = {Obzory matematiky, fyziky a informatiky},
year = {2011},
volume = {40},
number = {3},
pages = {55--57},
issn = {1335-4981},
note = {Informácie},
}