@misc{indiciae6d7646d518a3,
  title = {Is there liquid water on Europa},
  author = {Cassen, P. and Reynolds, R. T. and Peale, S. J.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790067483},
  note = {Source identifier: 19790067483}
}