@misc{indiciaee54327683588,
  title = {Temporal and spectral characteristics of seismicity observed at Popocatepetl volcano, central Mexico},
  author = {A. Arciniega-Ceballos and C. Valdes-Gonzalez and P. Dawson},
  year = {2000},
  doi = {10.1016/s0377-0273(00)00188-8},
  url = {https://pubs.usgs.gov/publication/70022420},
  note = {Source identifier: 70022420}
}