@misc{indiciae4ebe3e7c659c,
  title = {Charge-exchange erosion studies of accelerator grids in ion thrusters},
  author = {Xiaohang Peng and Wilhelmus M. Ruyten and Dennis Keefer},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19960009792},
  note = {Source identifier: 19960009792}
}