Authors
Bożena Łowkis
Wroclaw University of Science and Technology, Faculty of Electrical Engineering, 8 Janiszewskiego St., 50-377, Wroclaw, Poland
© 2017 Bożena Łowkis, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.