@misc{indiciaeadd124e41971,
  title = {Variability of ethane on Jupiter},
  author = {Kostiuk, Theodor and Espenak, Fred and Mumma, Michael J. and Deming, Drake and Zipoy, David},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880033331},
  note = {Source identifier: 19880033331}
}