2018. The $L^1$-Error Estimates for a Hamiltonian-Preserving Scheme for the Liouville Equation with Piecewise Constant Potentials and Perturbed Initial Data. Journal of Computational Mathematics. 29, 1 (Aug. 2018), 26–48. DOI:https://doi.org/10.4208/jcm.1006-m3057.