Authors
Edgars Vigants
Institute of Energy Systems and Environment, Riga Technical University, Azenes iela 12/1,, Riga, Latvia
Toms Prodanuks
Institute of Energy Systems and Environment, Riga Technical University, Azenes iela 12/1,, Riga, Latvia
Girts Vigants
Institute of Energy Systems and Environment, Riga Technical University, Azenes iela 12/1,, Riga, Latvia
Ivars Veidenbergs
Institute of Energy Systems and Environment, Riga Technical University, Azenes iela 12/1,, Riga, Latvia
Dagnija Blumberga
Institute of Energy Systems and Environment, Riga Technical University, Azenes iela 12/1,, Riga, Latvia