@misc{indiciae51fca57646c1,
  title = {Neptune's cloud structure in 1989 - Photometric variations and correlation with ground-based images},
  author = {Lockwood, G. W. and Thompson, D. T. and Hammel, H. B. and Birch, P. and Candy, M.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910050461},
  note = {Source identifier: 19910050461}
}