@misc{indiciaefa67f1ed2141,
  title = {Stratigraphic data and length of the synodic month},
  author = {J. E. Hazel and T.R. Waller},
  year = {1969},
  doi = {10.1126/science.164.3876.201.b},
  url = {https://pubs.usgs.gov/publication/70010153},
  note = {Source identifier: 70010153}
}