@misc{indiciae2840d8bba8ee,
  title = {Distribution of manganese between coexisting biotite and hornblende in plutonic rocks},
  author = {L. P. Greenland and D. Gottfried and R.I. Tilling},
  year = {1968},
  doi = {10.1016/0016-7037(68)90118-x},
  url = {https://pubs.usgs.gov/publication/70009854},
  note = {Source identifier: 70009854}
}