@misc{indiciae27f9435e9b89,
  title = {Fission-track geochronology of the Arkansas alkaline province},
  author = {G.N. Eby},
  year = {1987},
  doi = {10.3133/ofr87287},
  url = {https://pubs.usgs.gov/publication/ofr87287},
  note = {Source identifier: ofr87287}
}