Authors
Ilze Vamza
Institute of Energy Systems and Environment, Riga Technical University, Latvia
Karlis Valters
Institute of Energy Systems and Environment, Riga Technical University, Latvia
Arnis Dzalbs
Institute of Energy Systems and Environment, Riga Technical University, Latvia
Edgars Kudurs
Institute of Energy Systems and Environment, Riga Technical University, Latvia
Dagnija Blumberga
Institute of Energy Systems and Environment, Riga Technical University, Latvia