@misc{indiciae2a6530317557,
  title = {Canister cryogenic system for cooling germanium semiconductor detectors in borehole and marine probes},
  author = {G. R. Boynton},
  year = {1975},
  doi = {10.1016/0029-554x(75)90216-5},
  url = {https://pubs.usgs.gov/publication/70010949},
  note = {Source identifier: 70010949}
}