@misc{indiciae206be17862b7,
  title = {Results from two recent ovserving system experiments},
  author = {Uppala, S. and Kallberg, P. and Hollingsworth, A. and Tibaldi, S.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19860014656},
  note = {Source identifier: 19860014656}
}