@manual{74605,
  author = {J. Gibson and P.W. Kållberg and S. Uppala and Angeles Hernandez and A. Nomura and E. Serrano},
  title = {ERA Description},
  year = {1997},
  journal = {ERA 15},
  number = {1},
  pages = {72},
  month = {07/1997},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}