@misc{74404,
  author = {P. Emmrich and P.W. Kållberg},
  title = {Statistical assessment of an observing system experiment based on frequency distributions of 500 hPa differences},
  year = {1985},
  journal = {ECMWF Technical Memoranda},
  number = {114},
  pages = {19},
  month = {12/1985},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  url = {https://www.ecmwf.int/node/9290},
  doi = {10.21957/5khio4ctt},
  language = {eng},
}