@conference{195376,
  author = {Timothy Drapela},
  title = {Interlaboratory Comparison of Far-Field Methods for Determining Mode Field Diameter Using Both Gaussian and Petermann Definitions},
  year = {1988},
  month = {1988-09-01},
  publisher = {Tech. Dig., Symp. on Optical Fiber Meas., Boulder, CO},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=21860},
  language = {en},
}