@conference{794326,
  author = {C Tilford and A Miiller},
  title = {Development of a Low Differential-Pressure Standard},
  year = {1997},
  number = {1},
  month = {1997-12-01 00:12:00},
  publisher = {1997 National Conference of Standards Laboratories Workshop and Symposium, Boulder, CO, USA},
  language = {en},
}