@article{gokani2024paraxial,
  title={Paraxial and ray approximations of acoustic vortex beams},
  author={C.~A.~Gokani and M.~R.~Haberman and M.~F.~Hamilton},
  journal={J.~Acoust.~Soc.~Am.},
  volume={155},
  number={4},
  pages={2707--2723},
  year={2024}
}