@article{maury2005analytic,
  title = "Analytic solutions of the radiation modes problem and the active control of sound power",
  author = "Maury, Cedric and Elliott, Stephen J",
  year = "2005",
  journal = "Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences",
  number = "2053",
  pages = "55--78",
  publisher = "The Royal Society",
  volume = "461",
}