Limit Cycles of a Class of Polynomial Differential Systems Bifurcating from the Periodic Orbits of a Linear Center. - Amor Menaceur; Salah Mahmoud Boulaaras; Salem Alkhalaf; Shilpi Jain (Symmetry, 2020)

Limit Cycles of a Class of Perturbed Differential Systems via the First-Order Averaging Method. - Amor Menaceur; Salah Mahmoud Boulaaras; Amar Makhlouf; Karthikeyan Rajagopal; Mohamed Abdalla (Complex., 2021)