@misc{indiciae98cb6005ebb9,
  title = {Descriptions of seismic array components, Part I: Digger, digitec, and multiplexer},
  author = {William Hung Kan Lee},
  year = {1992},
  doi = {10.3133/ofr92430a},
  url = {https://pubs.usgs.gov/publication/ofr92430A},
  note = {Source identifier: ofr92430A}
}