%0 Journal Article %T A new copula-based bivariate Gompertz--Makeham model and its application to COVID-19 mortality data %A Esfahani, Mojtaba %A Amini, Mohammad %A Mohtashami Borzadaran, Gholam Reza %A , %J Iranian Journal of Fuzzy Systems %@ 1735-0654 %D 2023