@misc{indiciae018962d55988,
  title = {Comparison of the magnetic properties of glass from Luna 20 with similar properties of glass from the Apollo missions},
  author = {F. E. Senftle and A. N. Thorpe and C.C. Alexander and C.L. Briggs},
  year = {1973},
  doi = {10.1016/0016-7037(73)90199-3},
  url = {https://pubs.usgs.gov/publication/70009825},
  note = {Source identifier: 70009825}
}