@article{845876,
  author = {Blaza Toman and T Coplen and W Brand and R. Verkouteren and M Gehre and M Groening and HAJ Meijer},
  title = {Consistency of &#916; <sup>13</sup> C Measurements Improved},
  year = {2006},
  month = {2006-02-01 00:02:00},
  publisher = {Nature},
  language = {en},
}