@misc{indiciaee296c9e73850,
  title = {An empirical method for estimating travel times for wet volcanic mass flows},
  author = {Thomas C. Pierson},
  year = {1998},
  doi = {10.1007/s004450050219},
  url = {https://pubs.usgs.gov/publication/70093566},
  note = {Source identifier: 70093566}
}