APA (7th ed.) Citation

Kouidere, A., Kada, D., Balatif, O., Rachik, M., & Naim, M. (2021). Optimal control approach of a mathematical modeling with multiple delays of the negative impact of delays in applying preventive precautions against the spread of the COVID-19 pandemic with a case study of Brazil and cost-effectiveness. Chaos, solitons and fractals, 142, 110438. https://doi.org/10.1016/j.chaos.2020.110438

Chicago Style (17th ed.) Citation

Kouidere, Abdelfatah, Driss Kada, Omar Balatif, Mostafa Rachik, and Mouhcine Naim. "Optimal Control Approach of a Mathematical Modeling with Multiple Delays of the Negative Impact of Delays in Applying Preventive Precautions Against the Spread of the COVID-19 Pandemic with a Case Study of Brazil and Cost-effectiveness." Chaos, Solitons and Fractals 142 (2021): 110438. https://doi.org/10.1016/j.chaos.2020.110438.

MLA (9th ed.) Citation

Kouidere, Abdelfatah, et al. "Optimal Control Approach of a Mathematical Modeling with Multiple Delays of the Negative Impact of Delays in Applying Preventive Precautions Against the Spread of the COVID-19 Pandemic with a Case Study of Brazil and Cost-effectiveness." Chaos, Solitons and Fractals, vol. 142, 2021, p. 110438, https://doi.org/10.1016/j.chaos.2020.110438.