À propos de cet article
Publié en ligne: 25 juil. 2019
Pages: 67 - 75
DOI: https://doi.org/10.2478/jtes-2019-0005
Mots clés
© 2019 Edgar Petrinko, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Petrinko, Edgar
Daugavpils UniversityDaugavpils