Authors
Levente Filep
Sapientia University, Department of Economic Sciences, Miercurea Ciuc
László Illyés
Sapientia University, Department of Economic Sciences, Miercurea Ciuc
© 2018 Levente Filep, László Illyés, published by Sapientia Hungarian University of Transylvania
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.