@misc{indiciae26387e82fc4c,
  title = {Physical and chemical factors in the formation of marine apatite},
  author = {R. A. Gulbrandsen},
  year = {1969},
  doi = {10.2113/gsecongeo.64.4.365},
  url = {https://pubs.usgs.gov/publication/70223776},
  note = {Source identifier: 70223776}
}