@misc{indiciae2a59212ed276,
  title = {Tiltmeter and magnetometer measurements at Mount St. Helens, Washington; 1980-1981},
  author = {John T. Dvorak and A.T. Okamura and M. J. Johnston and Carl Mortensen and Robert Mueller and Bruce Furukawa},
  year = {1984},
  doi = {10.3133/ofr84164},
  url = {https://pubs.usgs.gov/publication/ofr84164},
  note = {Source identifier: ofr84164}
}