Authors
Oksana Nikiforova
Riga Technical University, Riga, Latvia
Uldis Sukovskis
Riga Technical University, Riga, Latvia
© 2019 Kristaps Babris, Oksana Nikiforova, Uldis Sukovskis, published by Riga Technical University
This work is licensed under the Creative Commons Attribution 4.0 License.