1.
Čupona Ǵorǵi, Celakoski N, Janeva B. CANONICAL GROUPOIDS WITH \(x^m \cdot y^n = xy\). Mat. Bilt. [Internet]. 1999 Jan. 1 [cited 2026 Aug. 14];23(1):11-8. Available from: https://bilten.smm.org.mk/index.php/bilten/article/view/1592