@misc{indiciae752616c9a30e,
  title = {A tree-ring based reconstruction of the Atlantic Multidecadal Oscillation since 1567 A.D},
  author = {S.T. Gray and L.J. Graumlich and J.L. Betancourt and G.T. Pederson},
  year = {2004},
  doi = {10.1029/2004gl019932},
  url = {https://pubs.usgs.gov/publication/70027019},
  note = {Source identifier: 70027019}
}