@misc{indiciaecd796b824812,
  title = {Evaluation of the 34S/32S ratio of Soufre de Lacq elemental sulfur isotopic reference material by continuous flow isotope-ratio mass spectrometry},
  author = {H. P. Qi and T.B. Coplen},
  year = {2003},
  doi = {10.1016/s0009-2541(03)00075-5},
  url = {https://pubs.usgs.gov/publication/70025225},
  note = {Source identifier: 70025225}
}