@misc{indiciae2bcdd36c1d74,
  title = {Effect of sample inhomogeneity in K Ar dating},
  author = {J. C. Engels and C.O. Ingamells},
  year = {1970},
  doi = {10.1016/0016-7037(70)90082-7},
  url = {https://pubs.usgs.gov/publication/70010226},
  note = {Source identifier: 70010226}
}