@misc{indiciae310893901804,
  title = {A submillipound mercury electron bombardment thruster},
  author = {Banks, B. A. and Lathem, W. C. and Nakanishi, S. and Reader, P. D.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19710030880},
  note = {Source identifier: 19710030880}
}