About this article
Published Online: May 30, 2014
Page range: 40 - 43
DOI: https://doi.org/10.2478/cee-2014-0005
Keywords
© 2014
This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Urda, Ján
Mandula, Ján
Urdová, Anastázia