@misc{indiciae123ac0855aff,
  title = {The composition, structure, and stability of guinier-preston zones in lunar and terrestrial orthopyroxene},
  author = {Gordon L. Nord},
  year = {1980},
  doi = {10.1007/bf00311049},
  url = {https://pubs.usgs.gov/publication/70012627},
  note = {Source identifier: 70012627}
}