@misc{80245,
  keywords = {newsletter},
  author = {Erik Andersson and Jean-Noël Thépaut},
  title = {ECMWF’s 4D-Var data assimilation system – the genesis and ten years in operations},
  year = {2008},
  journal = {ECMWF Newsletter},
  chapter = {Meteorology},
  pages = {8-12},
  month = {2008},
  publisher = {ECMWF},
  url = {https://www.ecmwf.int/node/17509},
  doi = {10.21957/wnmguimihe},
  language = {eng},
}