Published Online: Mar 20, 2020
Page range: 118 - 119
DOI: https://doi.org/10.2478/bsmr-2019-0007
© 2019 Andra Siibak, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Andra Siibak
University of Tartu,
Estonia