@misc{indiciae9e6cb0ac4ddc,
  title = {Isotope-abundance variations of selected elements (IUPAC technical report)},
  author = {T.B. Coplen and J.K. Böhlke and P. De Bievre and T. Ding and N.E. Holden and J.A. Hopple and H.R. Krouse and A. Lamberty and H.S. Peiser and K. Revesz and S.E. Rieder and K.J.R. Rosman and E. Roth and P.D.P. Taylor and R.D. Vocke and Y.K. Xiao},
  year = {2009},
  doi = {10.1351/pac200274101987},
  url = {https://pubs.usgs.gov/publication/70024252},
  note = {Source identifier: 70024252}
}