Alvis.Sokolovs@rtu.lv
Linards.Grigans@gmail.com
© 2014 A. Sokolovs, L. Grigans, E. Kamolins, J. Voitkans, published by Institute of Physical EnergeticsThis work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.