@misc{indiciae50d07cf1bda2,
  title = {Hydrogen reliquefaction in earth orbit.},
  author = {Gibson, L. A. and Rose, A. and Tamusaitis, J. J. and Wilkinson, W. K.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670048907},
  note = {Source identifier: 19670048907}
}