Authors
Edite Biseniece
Institute of Energy Systems and Environment, Riga Technical University Azenes iela 12/1,, Riga, Latvia
Ritvars Freimanis
Institute of Energy Systems and Environment, Riga Technical University Azenes iela 12/1,, Riga, Latvia
Reinis Purvins
Institute of Energy Systems and Environment, Riga Technical University Azenes iela 12/1,, Riga, Latvia
Armands Gravelsins
Institute of Energy Systems and Environment, Riga Technical University Azenes iela 12/1,, Riga, Latvia
Aivars Pumpurs
Institute of Industrial Electronics and Electrical Engineering, Riga Technical University, Azenes iela 12/1,, Riga, Latvia
Andra Blumberga
Institute of Energy Systems and Environment, Riga Technical University Azenes iela 12/1,, Riga, Latvia