Authors
Marina Järvis
Tallinn University of Technology,, Tallinn, Estonia
Karin Reinhold
Tallinn University of Technology,, Tallinn, Estonia
© 2019 Jaana Sepp, Marina Järvis, Karin Reinhold, published by Riga Technical University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.