@misc{indiciaee0899e952337,
  title = {Global Coverage from Ad-Hoc Constellations in Rideshare Orbits},
  author = {Ellis, Armin and Mercury, Michael and Brown, Shannon},
  year = {2012},
  url = {https://ntrs.nasa.gov/citations/20150005492},
  note = {Source identifier: 20150005492}
}