About this article
Published Online: Mar 28, 2021
Page range: 3 - 6
DOI: https://doi.org/10.2478/sjs-2021-0003
© 2021 Sophie Mützel et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Sophie Mützel
Judith Nyfeler
Luca Pattaroni
Marc Perrenoud
Felix Bühlmann