@misc{indiciaeab8f7ee691ad,
  title = {A helium-3/helium-4 dilution cryocooler for operation in zero gravity},
  author = {Hendricks, John B.},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19930009208},
  note = {Source identifier: 19930009208}
}