@phdthesis{74514,
  author = {H. Fortrak},
  title = {General problem of parameterization of sub-grid processes},
  year = {1975},
  journal = {Seminar on the Scientific Foundation of Medium Range Weather Forecasts, 1-12 September 1975},
  volume = {I},
  pages = {250-257},
  month = {1975},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}