@misc{indiciae3273f1ce0357,
  title = {Titanium Optics for Ion Thrusters},
  author = {Soulas, George C. and Haag, Thomas W. and Patterson, Michael J. and Rawlin, Vincent K.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20000023191},
  note = {Source identifier: 20000023191}
}