Authors
Danguole Bisikirske
danguole.bisikirske@stud.vgtu.lt
Vilnius Gediminas Technical University, Vilnius, Lithuania
Dagnija Blumberga
Institute of Energy Systems and Environment, Riga Technical University, Riga, Latvia
Saulius Vasarevicius
Vilnius Gediminas Technical University, Vilnius, Lithuania
Gintautas Skripkiunas
Vilnius Gediminas Technical University, Vilnius, Lithuania