About this article
Published Online: Nov 15, 2019
Page range: 63 - 76
Received: Oct 03, 2019
DOI: https://doi.org/10.2478/tmmp-2019-0020
Keywords
© 2019 Ján Haluška et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Haluška, Ján
Mathematical Institute, Slovak Academy of SciencesKošice, Slovakia
Jastrzębska, Małgorzata
Institute of Mathematics and Physics, Siedlce University of Natural Sciences and HumanitiesSiedlce, Poland