@misc{indiciae0feba5d643ee,
  title = {Spinel troctolite and anorthosite in Apollo 16 samples.},
  author = {Prinz, M. and Dowty, E. and Keil, K. and Bunch, T. E.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730031521},
  note = {Source identifier: 19730031521}
}