@misc{indiciae6a31b2692560,
  title = {Workshop on Earth-Orbital Planetary Astronomy},
  author = {Bergstralh, Jay T. and Belton, M. J. S.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870003047},
  note = {Source identifier: 19870003047}
}