@misc{indiciaed76081f3637c,
  title = {Test and evaluation of the Guralp Systems CMG-3S broadband borehole deployable seismometer system},
  author = {Larry Claude Holcomb and Charles R. Hutt},
  year = {1991},
  doi = {10.3133/ofr91282},
  url = {https://pubs.usgs.gov/publication/ofr91282},
  note = {Source identifier: ofr91282}
}