@misc{indiciaea5c2b8496ba9,
  title = {Volcán Popocatépetl, Mexico. Petrology, magma mixing, and immediate sources of volatiles for the 1994- Present eruption},
  author = {J.B. Witter and V.C. Kress and C. G. Newhall},
  year = {2005},
  doi = {10.1093/petrology/egi058},
  url = {https://pubs.usgs.gov/publication/70027631},
  note = {Source identifier: 70027631}
}