@misc{indiciae55752af42b14,
  title = {Overview of NASA's Pulsed Plasma Thruster Development Program},
  author = {Pencil, Eric J. and Kamhawi, Hani and Arrington, Lynn A.},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20040139545},
  note = {Source identifier: 20040139545}
}