@misc{indiciaeb3941fe73e4e,
  title = {Performance testing of a solid propellant pulsed plasma microthruster.},
  author = {Williams, T. E. and Callens, R. A.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720045279},
  note = {Source identifier: 19720045279}
}