@misc{indiciaec2459e86452c,
  title = {An analysis of outer planet navigation systems.},
  author = {Ondrasik, V. J. and Ransford, G. A. and Hildebrand, C. E.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720061766},
  note = {Source identifier: 19720061766}
}