@article{847121,
  author = {T.B. Coplen and W.A. Brand and M. Gehre and M. Groning and H.A.J. Meijer and Blaza Toman and R. Verkouteren},
  title = {After Two Decades a Second Anchor for the VPDB delta-13-C Scale},
  year = {2006},
  number = {20},
  month = {2006-11-15 00:11:00},
  publisher = {Rapid Communications in Mass Spectrometry},
  language = {en},
}