Authors
Gunars Valdmanis
Riga Technical University, Institute of Energy Systems and Environment, Riga, Latvia
Gatis Bazbauers
Riga Technical University, Institute of Energy Systems and Environment, Riga, Latvia
Martins Bataitis
Riga Technical University, Institute of Energy Systems and Environment, Riga, Latvia
Girts Bohvalovs
Riga Technical University, Institute of Energy Systems and Environment, Riga, Latvia
Janis Lilo
Riga Technical University, Institute of Energy Systems and Environment, Riga, Latvia
Andra Blumberga
Riga Technical University, Institute of Energy Systems and Environment, Riga, Latvia
Dagnija Blumberga
Riga Technical University, Institute of Energy Systems and Environment, Riga, Latvia