About this article
Published Online: May 30, 2018
Page range: 45 - 51
DOI: https://doi.org/10.2478/acss-2018-0006
Keywords
© 2018 Rinalds Vīksna et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 Public License.
Vīksna, Rinalds
Riga Technical UniversityRiga, Latvia
Jēkabsons, Gints
Riga Technical UniversityRiga, Latvia