@misc{indiciaec1bc1bbce66b,
  title = {Domed, 40-cm-Diameter Ion Optics for an Ion Thruster},
  author = {Soulas, George C. and Haag, Thomas W. and Patterson, Michael J.},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20110013623},
  note = {Source identifier: 20110013623}
}