Authors
Ilze Luksta
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Pauls Asaris
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Maksims Feofilovs
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Dagnija Blumberga
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia