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 2026 Mar. 18];26(1):1-22. Available from: https://staging.gsp.tricubic.dev/JCM/article/view/11864