@misc{indiciae20267fdb40f0,
  title = {Superfluid plug as a control device for helium coolant},
  author = {Karr, G. R. and Urban, E. W.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800048179},
  note = {Source identifier: 19800048179}
}