Carvalho, A. R., C. M. Pinto, and J. N. Tavares. “Maintenance of the Latent Reservoir by Pyroptosis and Superinfection in a Fractional Order HIV Transmission Model”. An International Journal of Optimization and Control: Theories & Applications (IJOCTA), vol. 9, no. 3, July 2019, pp. 69-75, doi:10.11121/ijocta.01.2019.00643.