@conference{62486,
  author = {Paul Kunz and Thomas Heavner and Steven Jefferts},
  title = {Progress on a Portable Rubidium Fountain Frequency Standard},
  year = {2009},
  month = {2009-11-16},
  publisher = {Proc. 2009 PTTI Mtg., Santa Ana Pueblo, NM},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=904657},
  language = {en},
}