RIZGAR H. SALIH; MOHAMMAD S. HASSO; SURMA H. IBRAHIM. Centre Bifurcations for a Three Dimensional System with Quadratic Terms. Zanco Journal of Pure and Applied Sciences, [S. l.], v. 32, n. 2, p. 62–71, 2020. DOI: 10.21271/ZJPAS.32.2.7. Disponível em: https://zancojournal.su.edu.krd/index.php/JPAS/article/view/2205. Acesso em: 3 jul. 2024.