@phdthesis{74152,
  author = {D.P. Dee},
  title = {A simple scheme for tuning forecast error covariance paramters},
  year = {1992},
  journal = {Workshop on Variational Assimilation, with special emphasis on Three-dimensional Aspects, 9-12 November 1992},
  pages = {191-206},
  month = {1992},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}