À propos de cet article
Publié en ligne: 23 févr. 2019
Pages: 45 - 57
Reçu: 18 janv. 2018
Accepté: 24 avr. 2018
DOI: https://doi.org/10.2478/aupcsm-2018-0005
Mots clés
© 2018 Karol Gryszka, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Gryszka, Karol
Institute of Mathematics Pedagogical, University of CracowKraków, Poland