@misc{indiciae4f7baad9e8c2,
  title = {Development of hydrocarbon gas standards for stable isotopic composition (δ13C and δ2H)},
  author = {Geoffrey S. Ellis and Robert F. Dias},
  year = {2022},
  doi = {10.3133/sir20215136},
  url = {https://pubs.usgs.gov/publication/sir20215136},
  note = {Source identifier: sir20215136}
}