@misc{indiciae912496bda001,
  title = {Europa's phase curve - Implications for surface structure},
  author = {Domingue, D. L. and Hapke, B. W. and Lockwood, G. W. and Thompson, D. T.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910046113},
  note = {Source identifier: 19910046113}
}