@misc{indiciae3d173225f413,
  title = {Volcano-hazard zonation for San Vicente volcano, El Salvador},
  author = {J. J. Major and S. P. Schilling and C.R. Pullinger and C.D. Escobar and M.M. Howell},
  year = {2001},
  doi = {10.3133/ofr01367},
  url = {https://pubs.usgs.gov/publication/ofr01367},
  note = {Source identifier: ofr01367}
}