Authors
Evelina Behmane
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Liga Rozentale
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Ivars Veidenbergs
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Dagnija Blumberga
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia