Authors
Indra Berzina
Riga Technical University, Institute of Energy Systems and Environment, Riga, Latvia
Kriss Spalvins
Riga Technical University, Institute of Energy Systems and Environment, Riga, Latvia
© 2023 Indra Berzina, Kriss Spalvins, published by Riga Technical University
This work is licensed under the Creative Commons Attribution 4.0 License.