Authors
Professor Vicente Pinilla, Universidad de Zaragoza, Faculty of Economics and Business Studies, Zaragoza, Spain
Associated Professor Luis Antonio Sáez Pérez, Universidad de Zaragoza, Faculty of Economics and Business Studies, Zaragoza, Spain
© 2021 Vicente Pinilla, Luis Antonio Sáez, published by Mendel University in Brno
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.