Convergence of an Immersed Interface Upwind Scheme for Linear Advection Equations with Piecewise Constant Coefficients I: $L^1$-Error Estimates. JCM [Internet]. 2018 Aug. 15 [cited 2025 Dec. 5];26(1):1-22. Available from: https://global-sci.com/index.php/JCM/article/view/11864