@ARTICLE {,
title = {János BOLYAI (15.12.1802 – 27.1.1860)},
author = {Jedinák, Dušan},
journal = {Obzory matematiky, fyziky a informatiky},
year = {2013},
volume = {42},
number = {4},
pages = {52},
issn = {1335-4981},
}