@misc{indiciaecefd716665cf,
  title = {Development Status of High-Thrust Density Electrostatic Engines},
  author = {Patterson, Michael J. and Haag, Thomas W. and Foster, John E. and Young, Jason A. and Crofton, Mark W.},
  year = {2017},
  url = {https://ntrs.nasa.gov/citations/20170007956},
  note = {Source identifier: 20170007956}
}