Kitagawa G. COMBINING DATA ASSIMILATION AND THE SIR INFECTION EQUATION FOR BETTER UNDERSTANDING OF COVID-19 . International Journal of Interdisciplinary Research in Statistics, Mathematics and Engineering (IJIRSME) [Internet]. 2023 Aug. 3 [cited 2025 Mar. 15];9(2):34-48. Available from: https://sadijournals.org/index.php/IJIRSME/article/view/172