@misc{78738,
  keywords = {annual seminar},
  author = {G. Desroziers},
  title = {Diagnosing the optimality of data assimilation systems},
  year = {2009},
  journal = {ECMWF Annual Seminar 2009},
  month = {2009},
  url = {https://www.ecmwf.int/node/15238},
  language = {eng},
}