@misc{indiciae145bd53f7901,
  title = {Converting NAD83 GPS Heights Into NAVD88 Elevations With LVGEOID, a Hybrid Geoid Height Model for the Long Valley Volcanic Region, California},
  author = {Maurizio Battaglia and Daniel Dzurisin and John O. Langbein and Jerry Svarc and David P. Hill},
  year = {2008},
  doi = {10.3133/sir20075255},
  url = {https://pubs.usgs.gov/publication/sir20075255},
  note = {Source identifier: sir20075255}
}