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Publicado en línea: 06 feb 2015
Páginas: 189 - 196
DOI: https://doi.org/10.2478/ep-2014-0013
© 2015
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Marek Lesniak
Faculty of Law and Administration University of Silesia in Katowice Katowice Poland