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DOI: https://doi.org/10.2478/amsil-2026-0008 | Journal eISSN: 2391-4238 (formerly 0860-2107) | Journal ISSN: 0860-2107
Language: English
Page range: 174 - 218
Submitted on: Jul 22, 2025
Accepted on: Apr 11, 2026
Published on: Jul 1, 2026
Published by: University of Silesia in Katowice, Institute of Mathematics
In partnership with: Paradigm Publishing Services
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© 2026 Gian Luigi Forti, published by University of Silesia in Katowice, Institute of Mathematics
This work is licensed under the Creative Commons Attribution 4.0 License.