@misc{indiciaef8027cd486cc,
  title = {Lunar plagioclase - A mineralogical study.},
  author = {Wenk, H.-R. and Ulbrich, M. and Muller, W. F.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730034910},
  note = {Source identifier: 19730034910}
}