@manual{74262,
  author = {Rossana Dragani},
  title = {Monitoring and assimilation of SCIAMACHY, GOMOS and MIPAS retrievals at ECMWF. Annual Report for ESA contract 21519/08/I-OL: Technical support for global validation of ENVISAT data products.},
  year = {2009},
  journal = {Annual Report for ESA contract 21519/08/I-OL},
  number = {2009:ESA Contract 21519/08/I-OL},
  month = {02/2009},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}