@manual{73464,
  author = {U. Andrae and N. Sokka and K. Onogi},
  title = {The radiosonde temperature bias corrections used in ERA-40},
  year = {2004},
  journal = {ERA-40 Project Report Series},
  number = {15},
  month = {04/2004},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}