A low Mach two-speed relaxation scheme for the compressible Euler equations with gravity

@misc{klingenberg2023lowmachtwospeed,
      title={A low Mach two-speed relaxation scheme for the compressible Euler equations with gravity},
      author={Christian Klingenberg and Christophe Chalons and Claudius Birke},
      year={2023},
      eprint={2112.02986},
      archivePrefix={arXiv},
      primaryClass={math.NA},
      url={https://arxiv.org/abs/2112.02986},
}