@misc{indiciaea43a667a2d5c,
  title = {The evolution of seismic monitoring systems at the Hawaiian Volcano Observatory},
  author = {Paul G. Okubo and Jennifer S. Nakata and Robert Y. Koyanagi},
  year = {2014},
  doi = {10.3133/pp18012},
  url = {https://pubs.usgs.gov/publication/pp18012},
  note = {Source identifier: pp18012}
}