About this article
Published Online: Aug 08, 2018
Page range: 3 - 9
DOI: https://doi.org/10.2478/ADHI-2018-0001
Keywords
© 2016 Peter Becker, Stefan Nellen, Published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 Public License.
Becker, Peter
Nellen, Stefan