Published Online: Dec 22, 2018
Page range: 187 - 196
DOI: https://doi.org/10.2478/mgrsd-1996-070128
© 2018 Alicja Krzymowska-Kostrowicka, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Alicja Krzymowska-Kostrowicka