@misc{indiciaeb18acf5418f1,
  title = {Mt. St. Helens: evidence of increased magmatic gas component},
  author = {R.E. Stoiber and S.N. Williams and L.L. Malinconico and D. A. Johnston and T. J. Casadevall},
  year = {1981},
  url = {https://pubs.usgs.gov/publication/70011698},
  note = {Source identifier: 70011698}
}