Authors
Kiur Kalme
Tallinn, Estonia
Andres Siirde
Tallinn University of Technology, Tallinn, Estonia
Anna Volkova
Tallinn University of Technology, Tallinn, Estonia
© 2021 Kertu Lepiksaar, Kiur Kalme, Andres Siirde, Anna Volkova, published by Riga Technical University
This work is licensed under the Creative Commons Attribution 4.0 License.