@misc{indiciae0afff07fb0cb,
  title = {Heliogyro-Configured Solar Sail Spacecraft},
  author = {Wiwattananon, Peerawan and Bryant, Robert G.},
  year = {2015},
  url = {https://ntrs.nasa.gov/citations/20160006088},
  note = {Source identifier: 20160006088}
}