@misc{74781,
  author = {J. Hennessy},
  title = {The effects at ECMWF of the changes of codes for surface observations on 1 January 1982},
  year = {1982},
  journal = {ECMWF Technical Memoranda},
  number = {54},
  pages = {13},
  month = {03/1982},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  url = {https://www.ecmwf.int/node/9851},
  doi = {10.21957/bu6emdq8l},
  language = {eng},
}