On centers for Generalized Abel Differential Equation. Journal of Zankoy Sulaimani - Part A, [S. l.], v. 15, n. 2, p. 67–71, 2013. DOI: 10.17656/jzs.10247. Disponível em: https://jzs.univsul.edu.iq/index.php/jzs/article/view/jzs-10247.. Acesso em: 17 apr. 2024.