@misc{indiciae08598779da62,
  title = {A test of the 40Ar/39Ar age spectrum technique on some terrestrial materials},
  author = {M. A. Lanphere and G. Brent Dalrymple},
  year = {1971},
  doi = {10.1016/0012-821x(71)90020-3},
  url = {https://pubs.usgs.gov/publication/70010332},
  note = {Source identifier: 70010332}
}