@misc{indiciae1a27653d89c9,
  title = {Long-period seismicity at Redoubt Volcano, Alaska, 1989-1990 related to magma degassing},
  author = {M.M. Morrissey},
  year = {1997},
  url = {https://pubs.usgs.gov/publication/70020132},
  note = {Source identifier: 70020132}
}