@misc{indiciaee3524d490879,
  title = {Active experiments in modifying spacecraft potential: Results from ATS-5 and ATS-6},
  author = {Olsen, R. and Whipple, E. C.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770026318},
  note = {Source identifier: 19770026318}
}