Published Online: Oct 04, 2018
Page range: 171 - 172
DOI: https://doi.org/10.2478/logos-2018-0016
© 2018 Jacek Różkowski, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Jacek Różkowski
University of Silesia,
Katowice