@article{85416,
  author = {Ronald Wittmann},
  title = {Spherical Wave Operators and the Translation Formulas},
  year = {1988},
  number = {36},
  month = {1988-08-01},
  publisher = {IEEE Transactions on Antennas and Propagation},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=18985},
  language = {en},
}