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Language: English
Page range: 155 - 157
Submitted on: Nov 7, 2018
Accepted on: Jan 17, 2019
Published on: Dec 30, 2019
Published by: Sciendo
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2019 Tsvetomir M. Ivanov, Tsvetko H. Tsvetkov, Dobromir D. Dimitrov, Martin P. Karamanliev, Azhar Khan, Tashko S. Deliyski, Yordan D. Popov, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.