Institute of Energy Systems and Environment, Researcher Riga Technical University, Kronvalda boulevard 1, LV-1010, Riga, Latvia
Māra Šteina
Faculty of Geography and Earth Sciences Department of Environmental Science, Alberta iela 10, Rīga, LV
K. Valters
Faculty of Power and Electrical Engineering Institute of Energy Systems and Environment, Riga Technical University, Kronvalda boulevard 1, LV-1010, Riga, Latvia
G. Bažbauers
Institute of Energy Systems and Environment, Riga Technical University, Kronvalda boulevard 1, LV-1010, Riga, Latvia