Language: English
Page range: 19 - 42
Submitted on: Nov 6, 2017
Accepted on: May 16, 2018
Published on: Mar 27, 2020
Published by: Slovak Academy of Sciences, Mathematical Institute
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year
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© 2020 Yukio Ohkubo, Oto Strauch, published by Slovak Academy of Sciences, Mathematical Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.