About this article
Published Online: Oct 08, 2019
Page range: 610 - 617
Received: May 23, 2019
Accepted: Jun 10, 2019
DOI: https://doi.org/10.2478/cqpi-2019-0082
Keywords
© 2019 Magdalena Mazur, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Mazur, Magdalena
Czestochowa University of TechnologyPoland