Language: English
Page range: 601 - 605
Submitted on: Jan 11, 2017
Accepted on: Aug 8, 2017
Published on: Oct 31, 2017
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
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© 2017 Bożena Łowkis, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.