@misc{indiciaec93833101363,
  title = {Pre-exploitation state of the Ahuachapán geothermal field, El Salvador},
  author = {Z. Aunzo and C. Laky and B. Steingrimsson and G.S. Bodvarsson and M.J. Lippmann and A.H. Truesdell and C. Escobar and A. Quintanilla and G. Cuellar},
  year = {1991},
  doi = {10.1016/0375-6505(91)90002-d},
  url = {https://pubs.usgs.gov/publication/70015000},
  note = {Source identifier: 70015000}
}