@misc{73827,
  author = {Roberto Buizza},
  title = {Unstable perturbations computed using the adjoint technique},
  year = {1992},
  journal = {ECMWF Technical Memoranda},
  number = {189},
  pages = {17},
  month = {10/1992},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  url = {https://www.ecmwf.int/node/8411},
  doi = {10.21957/hso625cg2},
  language = {eng},
}