@misc{indiciae5f6da909b036,
  title = {Optimal Observations for Variational Data Assimilation},
  author = {Koehl, Armin and Stammer, Detlef},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20030091495},
  note = {Source identifier: 20030091495}
}