Kada, D., Kouidere, A., Balatif, O., Rachik, M., & Labriji, E. H. (2020). Mathematical modeling of the spread of COVID-19 among different age groups in Morocco: Optimal control approach for intervention strategies. Chaos Solitons Fractals.

Kada, Driss, Abdelfatah Kouidere, Omar Balatif, Mostafa Rachik, und El Houssine Labriji. "Mathematical Modeling of the Spread of COVID-19 Among Different Age Groups in Morocco: Optimal Control Approach for Intervention Strategies." Chaos Solitons Fractals 2020.

Kada, Driss, et al. "Mathematical Modeling of the Spread of COVID-19 Among Different Age Groups in Morocco: Optimal Control Approach for Intervention Strategies." Chaos Solitons Fractals 2020.