About this article
Published Online: Mar 02, 2019
Page range: 82 - 82
DOI: https://doi.org/10.2478/jee-2019-0013
Keywords
© 2019 M. Kollár, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Kollár, M.