@misc{indiciae91c4d775bcee,
  title = {Global summary of volcano-deformation monitoring},
  author = {C.M. Stine},
  year = {1990},
  doi = {10.3133/ofr90651},
  url = {https://pubs.usgs.gov/publication/ofr90651},
  note = {Source identifier: ofr90651}
}