About this article
Published Online: Dec 30, 2016
Page range: 639 - 650
DOI: https://doi.org/10.1515/eces-2016-0045
Keywords
© 2016 Mariusz Ptak et al., published by De Gruyter Open
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Ptak, Mariusz
Nowak, Bogumił