Bourafa, Safa, Mohammed Salah Abdelouahab, and René Lozi. “On Periodic Solutions of Fractional-Order Differential Systems With a Fixed Length of Sliding Memory”. Journal of Innovative Applied Mathematics and Computational Sciences 1, no. 1 (December 30, 2021): 64–78. Accessed December 12, 2024. https://jiamcs.centre-univ-mila.dz/index.php/jiamcs/article/view/v1i1_6.