Language: English
Page range: 215 - 225
Submitted on: Sep 30, 2017
Accepted on: Apr 11, 2018
Published on: Aug 24, 2018
Published by: University of Silesia in Katowice, Institute of Mathematics
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year
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© 2018 Beata Hejmej, published by University of Silesia in Katowice, Institute of Mathematics
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.