@misc{indiciae409154591155,
  title = {Spacecraft charging investigation - A joint research and technology program},
  author = {Lovell, R. R. and Stevens, N. J. and Schober, W. and Pike, C. P. and Lehn, W.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770029678},
  note = {Source identifier: 19770029678}
}