Hakmi, M. A. and Nour , M. (2026) “A Fractional SEIAQR Model under Caputo and Atangana--Baleanu Operators: Dynamics, Sensitivity, and Estimation for the 2024 Algeria Diphtheria Outbreak”, Statistics, Optimization & Information Computing. doi: 10.19139/soic-2310-5070-4585.