@misc{indiciaedf43d08b93b1,
  title = {A 30-cm-diameter, low specific impulse, hollow cathode mercury thruster},
  author = {King, H. J. and Poeschel, R. L.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700064777},
  note = {Source identifier: 19700064777}
}