@misc{indiciaeac16affe638d,
  title = {An inexpensive, buffered analog-to-digital converter for use on the SCSI bus with the UNIX operating system},
  author = {P.L. Ward and Reese Cutler},
  year = {1987},
  doi = {10.3133/ofr87624},
  url = {https://pubs.usgs.gov/publication/ofr87624},
  note = {Source identifier: ofr87624}
}