@misc{indiciae74515814c36c,
  title = {Electrostatic acceleration system for hypervelocity microparticles with selected kinematic properties},
  author = {Lewis, A. R. and Walter, R. A.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700016862},
  note = {Source identifier: 19700016862}
}