@misc{indiciaecd3cf73715d9,
  title = {Cesium microthruster system.},
  author = {Collett, C. R. and Dulgeroff, C. R. and Simpkins, J. M.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690043886},
  note = {Source identifier: 19690043886}
}