@misc{indiciae015de1168ade,
  title = {Origin and ages of mineralization of Bayan Obo, the world's largest rare earth ore deposit, Inner Mongolia, China},
  author = {E.C. Chao and Mitsunobu Tatsumoto and R. L. Erickson and J.A. Minkin and J.M. Back and R.V. Buden and P.M. Okita and Hou Zonglin and Meng Qingrun and Ren Yingchen and Sun Weijun and E.H. McKee and B. D. Turrin and Wang Junwen and Li Xibin and C.A. Edwards},
  year = {1990},
  doi = {10.3133/ofr90538},
  url = {https://pubs.usgs.gov/publication/ofr90538},
  note = {Source identifier: ofr90538}
}