Authors
Dace Lauka
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Dzintra Slisane
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Linda Ievina
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