@misc{indiciae1a06d20caa06,
  title = {Orbital Effects on Mercury's Escaping Sodium Exosphere},
  author = {Schmidt, Carl A. and Wilson, Jody K. and Baumgardner, Jeffrey and Mendillo, Michael},
  year = {2009},
  url = {https://ntrs.nasa.gov/citations/20100037201},
  note = {Source identifier: 20100037201}
}