@misc{indiciae7e4d6dcc296b,
  title = {Basic parameters for low thrust mission and system analysis.},
  author = {Barber, T. A. and Horsewood, J. and Meissinger, H.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720042505},
  note = {Source identifier: 19720042505}
}