@article{22991,
  author = {Keith Gillis},
  title = {Second-order boundary corrections to the radial acoustic eigenvalues for a spherical cavity},
  year = {2012},
  number = {49},
  month = {2012-08-17},
  publisher = {Metrologia},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=911620},
  language = {en},
}