@misc{indiciae7819de0c2e60,
  title = {Self-Nulling Lock-in Detection Electronics for Capacitance Probe Electrometer},
  author = {Blaes, Brent R. and Schaefer, Rembrandt T.},
  year = {2012},
  url = {https://ntrs.nasa.gov/citations/20120013233},
  note = {Source identifier: 20120013233}
}