@misc{78749,
  keywords = {workshop, data assimilation, diagnostics, systems performance},
  author = {G. Desroziers},
  title = {Objective validation of a data assimilation system: diagnosing sub-optimality},
  year = {2009},
  month = {2009},
  url = {https://www.ecmwf.int/node/15250},
  language = {eng},
}