@misc{indiciaebbccc5f55644,
  title = {Ion Engine Service Life Validation by Analysis and Testing},
  author = {Brophy, John R. and Polk, James E. and Rawlin, Vincent K.},
  year = {1996},
  url = {https://ntrs.nasa.gov/citations/20060036381},
  note = {Source identifier: 20060036381}
}