Über diesen Artikel
Online veröffentlicht: 06. Juni 2014
Seitenbereich: 39 - 46
Eingereicht: 18. Jan. 2013
DOI: https://doi.org/10.2478/ausm-2014-0003
Schlüsselwörter
© 2014
This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Zoltán Finta
Babeş-Bolyai University Department of Mathematics 1, M. Kogălniceanu st., 400084 Cluj-Napoca, Romania