Published Online: Dec 11, 2019
Page range: 7 - 13
DOI: https://doi.org/10.2478/auseur-2019-0001
© 2019 Ferenc Hörcher, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Ferenc Hörcher
National University of Public Service,
Hungarian Academy of Sciences