Authors
Petra Lesnikova
Technical University in Zvolen, Department of Economics, Management and Business, Zvolen, Slovakia
Jarmila Schmidtova
Technical University in Zvolen, Department of Mathematics and Descriptive Geometry, Zvolen, Slovakia
© 2020 Petra Lesnikova, Jarmila Schmidtova, published by University of Maribor
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.