@misc{indiciaea5527aa51c0c,
  title = {Hafnium isotope stratigraphy of ferromanganese crusts},
  author = {D.-C. Lee and A. N. Halliday and J.R. Hein and K.W. Burton and J.N. Christensen and D. Gunther},
  year = {1999},
  doi = {10.1126/science.285.5430.1052},
  url = {https://pubs.usgs.gov/publication/70021857},
  note = {Source identifier: 70021857}
}