Authors
Anetta Szynal-Liana
Faculty of Mathematics and Applied Physics, Rzeszow University of Technology, Rzeszów, Poland
Iwona Włoch
Faculty of Mathematics and Applied Physics, Rzeszow University of Technology, Rzeszów, Poland
© 2019 Anetta Szynal-Liana, Iwona Włoch, published by University of Silesia in Katowice, Institute of Mathematics
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.