About this article
Published Online: Apr 09, 2016
Page range: 19 - 36
DOI: https://doi.org/10.1515/sho-2015-0002
Keywords
© 2015 Paweł Grata, published by De Gruyter Open
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
Grata, Paweł
University of Rzeszów