“Nonlinear Dynamics of Streptococcus Pneumoniae: A Modified Atangana-Baleanu-Caputo Fractional Model With Vaccination, Asymptomatic Carriage, and Saturated Hospital Capacity”. 2026. Nonlinear Studies 33 (1): 183-217. https://www.nonlinearstudies.com/index.php/nonlinear/article/view/4169.