About this article
Published Online: Dec 22, 2018
Page range: 93 - 102
DOI: https://doi.org/10.2478/mgrsd-1994-060114
Keywords
© 2018 Maria-Stopa Boryczka, et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Boryczka, Maria-Stopa
Kopacz-Lembowicz, Maria
Błażek, Elżbieta