@phdthesis{74041,
  author = {P. Courtier},
  title = {Experiments in data assimilation using the adjoint model technique},
  year = {1985},
  journal = {ECMWF Workshop on high resolution analysis, 24-26 June 1985},
  pages = {299-325},
  month = {1985},
  publisher = {ECMWF},
  language = {eng},
}