@misc{78527,
  keywords = {annual seminar},
  author = {Massimo Bonavita and L. Isaksen and M. Hamrud and E. Hólm and Mike Fisher and L. Raynaud and L. Berre and A. Clayton},
  title = {Ensemble of data assimilations and uncertainty estimation},
  year = {2011},
  journal = {ECMWF Annual Seminar 2011},
  month = {2011},
  language = {eng},
}