Authors
Valerija Kostevica
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Anna Kubule
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Ilze Vamza
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Toms Irbe
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Marika Rosa
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Dagnija Blumberga
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia