About this article
Published Online: Apr 14, 2018
Page range: 65 - 73
DOI: https://doi.org/10.2478/eb-2018-0005
Keywords
© 2018 Māris Jurušs, Ģirts Feldbergs, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Jurušs, Māris
Riga Technical University,Riga, Latvia
Feldbergs, Ģirts
Riga Technical University,Riga, Latvia