@misc{indiciae6a9d17008e13,
  title = {Revised value for the O 18 fractionation between CO 2 and H 2 O at 25°C},
  author = {James R. O’Neil and Lanford H. Adami and Samuel Epstein},
  year = {1975},
  url = {https://pubs.usgs.gov/publication/70156616},
  note = {Source identifier: 70156616}
}