O artykule
Data publikacji: 31 gru 2018
Zakres stron: 204 - 215
DOI: https://doi.org/10.2478/ijcss-2018-0012
Słowa kluczowe
© 2018 Perl J., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Perl, J.
University of MainzGermany