Authors
Grzegorz Golebiowski
The University of Finance and Management in Warsaw,, Warsaw, Poland
Piotr Szczepankowski
The University of Finance and Management in Warsaw,, Warsaw, Poland
© 2017 Grzegorz Golebiowski, Piotr Szczepankowski, Dorota Wisniewska, published by University of Information Technology and Management in Rzeszow
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.