@article{ranocha2018generalised, title={Generalised Summation-by-Parts Operators and Variable Coefficients}, author={Ranocha, Hendrik}, journal={Journal of Computational Physics}, volume={362}, pages={20--48}, year={2018}, month={02}, publisher={Elsevier}, doi={10.1016/j.jcp.2018.02.021}, eprint={1705.10541}, eprinttype={arxiv}, eprintclass={math.NA} }