Authors
L. Kauskale
Riga Technical University, Institute of Civil Engineering and Real Estate Economics, Riga, Latvia
I. Geipele
Riga Technical University, Institute of Civil Engineering and Real Estate Economics, Riga, Latvia
N. Zeltins
Institute of Physical Energetics, Riga, Latvia
J. Vanags
Riga Technical University, Institute of Civil Engineering and Real Estate Economics, Riga, Latvia