@phdthesis{73573,
  author = {J. Barkmeijer and Roberto Buizza and T.N. Palmer},
  title = {3DVAR Hessian singular vectors and their use in the ECMWF Ensemble Prediction System},
  year = {1997},
  journal = {Workshop on Predictability, 20-22 October 1997},
  pages = {245-268},
  month = {1997},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}