@misc{indiciae6c8082cb051b,
  title = {Climatic oscillations 1200-2000 AD.},
  author = {S J Johnsen and W Dansgaard and H B Clausen and C C Langway},
  year = {1970},
  doi = {10.1038/227482a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/16058011/},
  note = {Source identifier: 16058011}
}