@misc{indiciae6f1aced2859c,
  title = {Some geometric constraints on ring-width trend},
  author = {Richard L. Phipps},
  year = {2005},
  doi = {10.3959/1536-1098-61.2.73},
  url = {https://pubs.usgs.gov/publication/70027927},
  note = {Source identifier: 70027927}
}