@misc{indiciaecf081ed0045b,
  title = {Microwave electrothermal thruster performance in helium gas},
  author = {Whitehair, S. and Asmussen, J. and Nakanishi, S.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870044007},
  note = {Source identifier: 19870044007}
}