Authors
Zane Indzere
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Maira Melvere
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Indra Muizniece
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Dagnija Blumberga
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia