Authors
University of Szczecin, Institute os Economics and Finance
malgorzata.tarczynska@usz.edu.pl
University of Szczecin, Institute os Economics and Finance
malgorzata.tarczynska@usz.edu.pl
© 2020 Beata Zofia Filipiak, Małgorzata Tarczyńska-Łuniewska, published by University of Szczecin
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.