@misc{indiciaeb47a16ddd209,
  title = {Environmental Testing of the NEXT PM1 Ion Engine},
  author = {Synder, John S. and Anderson, John R. and VanNoord, Jonathan L. and Soulas, George C.},
  year = {2008},
  url = {https://ntrs.nasa.gov/citations/20080012738},
  note = {Source identifier: 20080012738}
}