@misc{indiciae39d94efaf4ce,
  title = {Fractional watt vuilleumier cryogenic refrigerator. Task 2: Analytical and test programs},
  author = {Miller, W. S. and Potter, V. L.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19780077783},
  note = {Source identifier: 19780077783}
}