@misc{78271,
  keywords = {annual seminar},
  author = {Niels Bormann and Massimo Bonavita and Peter Weston and Cristina Lupu and Carla Cardinali and A. McNally and Kirsti Salonen},
  title = {Progress towards better representation of observation and background errors in 4DVAR},
  year = {2014},
  journal = {ECMWF Annual Seminar 2014},
  month = {2014},
  language = {eng},
}