@article{11wpgtheory,
  author = {David M. Romps},
  title = {Weak pressure gradient approximation and its analytical solutions},
  journal = {Journal of the Atmospheric Sciences},
  year = {2012},
  volume = {69},
  number = {9},
  pages = {2835--2845},
  doi = {10.1175/jas-d-11-0336.1},
  url = {https://doi.org/10.1175/jas-d-11-0336.1},
}