@manual{76557,
  author = {H. Sävijärvi},
  title = {Verification and storing with empirical orthogonal functions},
  year = {1978},
  number = {18},
  pages = {36},
  month = {11/1978},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}