About this article
Published Online: Apr 06, 2017
Page range: 12 - 17
Received: Nov 09, 2016
Accepted: Dec 13, 2016
DOI: https://doi.org/10.1515/pielxxiw-2016-0032
Keywords
© 2017
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Trojanowska, Alina
Poland
Zarzycka, Danuta
Poland
Brodowicz-Król, Magdalena
Poland
Jędrzejewski, Arkadiusz
Poland
Wiktor, Anna
Poland