Authors
Toms Prodanuks
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Ivars Veidenbergs
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Vladimirs Kirsanovs
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Agris Kamenders
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Dagnija Blumberga
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia