À propos de cet article
Publié en ligne: 27 juil. 2021
Pages: 211 - 235
Reçu: 31 mars 2021
Accepté: 08 juil. 2021
DOI: https://doi.org/10.2478/amsil-2021-0008
Mots clés
© 2021 Maria B. Kania, published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Kania, Maria B.
Institute of Mathematics, University of Silesia in KatowiceKatowice, Poland