@misc{indiciae815a1c60349f,
  title = {Areal distribution, thickness, and volume of downwind ash from the May 18, 1980, eruption of Mount St. Helens},
  author = {Andrei M. Sarna-Wojcicki and Susan Shipley and R. B. Waitt and Daniel Dzurisin and W. H. Hays and J.O. Davis and S. H. Wood and Thomas Bateridge},
  year = {1980},
  doi = {10.3133/ofr801078},
  url = {https://pubs.usgs.gov/publication/ofr801078},
  note = {Source identifier: ofr801078}
}