À propos de cet article
Publié en ligne: 05 nov. 2014
Pages: 61 - 72
Reçu: 09 avr. 2014
DOI: https://doi.org/10.2478/ausm-2014-0018
Mots clés
© 2014
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Szántó, Csaba
Babeş-Bolyai University, Cluj-Napoca Faculty of Mathematics and Computer Science,Cluj-Napoca, Romania