@misc{indiciaee78393aae886,
  title = {Orbit Transfer Vehicle Engine Study. Phase A, extension 1: Alternate low-thrust capability task report},
  author = {Mellish, J. A.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19810013550},
  note = {Source identifier: 19810013550}
}