About this article
Article Category: Research Paper
Published Online: Sep 21, 2020
Page range: 116 - 125
Received: Jan 20, 2020
Accepted: Jul 31, 2020
DOI: https://doi.org/10.2478/jdis-2020-0036
Keywords
© 2020 Ülle Must, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Must, Ülle
Archimedes FoundationTartu, Estonia