About this article
Published Online: Dec 31, 2018
Page range: 112 - 122
DOI: https://doi.org/10.2478/poljes-2018-0010
Keywords
© 2019 Arleta Suwalska, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Suwalska, Arleta
University of Lodz,Lodz, Poland