@misc{indiciae05b3b559c471,
  title = {Analytical study program to develop the theoretical design of space borne electrostatically focused klystron amplifiers Final report},
  author = {Day, W. R. and Luchsinger, T. H.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19690003899},
  note = {Source identifier: 19690003899}
}