@misc{74461,
  author = {Laura Ferranti and T.N. Palmer and Franco Molteni and E. Klinker},
  title = {Tropical-extratropical interaction associated with the 30-60 day oscillation and its impacton medium and extended range predictability},
  year = {1989},
  journal = {ECMWF Technical Memoranda},
  number = {154},
  pages = {37},
  month = {06/1989},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  url = {https://www.ecmwf.int/node/9372},
  doi = {10.21957/c7a91fa3},
  language = {eng},
}