@phdthesis{76157,
  author = {David Richardson},
  title = {Ensembles using multiple models and analyses},
  year = {1999},
  journal = {Diagnosis of models and data assimilation systems, 6-10 September 1999},
  pages = {97-122},
  month = {1999},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}