About this article
Published Online: Sep 23, 2020
Page range: 79 - 91
DOI: https://doi.org/10.2478/rtuect-2020-0056
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© 2020 Lauma Zihare et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Zihare, Lauma
Institute of Energy Systems and Environment, Riga Technical UniversityLatvia
Blumberga, Dagnija
Institute of Energy Systems and Environment, Riga Technical UniversityLatvia