@misc{indiciaef15f92af8221,
  title = {A superfluid plug for space},
  author = {Everitt, C. W. F. and Fairbank, W. M. and Selzer, P. M.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710058583},
  note = {Source identifier: 19710058583}
}