Khireddine, F., & Grazem, M. (2026). On the Coexistence of Two Limit Cycles Enclosing a Node in a Class of Planar Differential Systems of Degree Six. Mathematical Methods in the Applied Sciences, 1-8. https://doi.org/10.1002/mma.71009
Παραπομπή σε μορφή Chicago (17η εκδ.)Khireddine, Fouad, και Mohamed Grazem. "On the Coexistence of Two Limit Cycles Enclosing a Node in a Class of Planar Differential Systems of Degree Six." Mathematical Methods in the Applied Sciences 2026: 1-8. https://doi.org/10.1002/mma.71009.
Παραπομπή σε μορφή MLA (9th εκδ.)Khireddine, Fouad, και Mohamed Grazem. "On the Coexistence of Two Limit Cycles Enclosing a Node in a Class of Planar Differential Systems of Degree Six." Mathematical Methods in the Applied Sciences, 2026, pp. 1-8, https://doi.org/10.1002/mma.71009.