@misc{indiciae7860179c60e5,
  title = {A solid cryogen refrigerator for 50 deg K infrared detector cooling.},
  author = {Caren, R. P. and Coston, R. M.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680054068},
  note = {Source identifier: 19680054068}
}