1. Bécache, E., Fauqueux, S., and Joly P., 2003, Stability of perfectly matched layers, group velocities and anisotropic waves: Journal of Computational Physics, 188(2), 399–433.
2. Bérenger, J. P., 1994, A perfectly matched layer for the absorption of electromagnetic waves: Journal of Computational Physics, 114(2), 185–200.
3. Cai, X., Liu, Y., Ren, Z., Wang, J., Chen, Z., Chen, K., and Wang, C., 2015, Three-dimensional acoustic wave equation modeling based on the optimal finite-difference scheme: Applied Geophysics, 12(3), 409–420.
4. Cerjan, C., Kosloff, D., Kosloff, R., and Resef, M., 1985, A nonreflecting boundary condition for discrete acoustic and elastic wave equations: Geophysics, 50(4), 705–708.
5. Chang S., and Liu Y., 2013, A truncated implicit highorder finite-difference scheme combined with boundary conditions: Applied Geophysics, 10(1), 53–62.