@conference{779761,
  author = {Ronald Wittmann and M. Young},
  title = {Are the Formulas for Mode-Field Diameter Correct?},
  year = {1998},
  month = {1998-09-01 00:09:00},
  publisher = {Tech. Dig., Symp. on Optical Fiber Meas., Boulder, CO},
  language = {en},
}