LIU, Yang; YU, Chen-Yue; SHEN, Ke-Ming. Researches on the COVID-19 epidemic in the world within a nonextensive SIR model. Medical Research Archives, [S.l.], v. 10, n. 6, june 2022. ISSN 2375-1924. Available at: <https://esmed.org/MRA/mra/article/view/2904>. Date accessed: 15 nov. 2024. doi: https://doi.org/10.18103/mra.v10i6.2904.