@misc{indiciaebe482f6d9ca8,
  title = {Trends in stomatal density and 13C/12C ratios of Pinus flexilis needles during last glacial-interglacial cycle},
  author = {Peter K. Van De Water and Steven W. Leavitt and J.L. Betancourt},
  year = {1994},
  doi = {10.1126/science.264.5156.239},
  url = {https://pubs.usgs.gov/publication/70017767},
  note = {Source identifier: 70017767}
}