@phdthesis{73462,
  author = {Erik Andersson},
  title = {Data assimilation in the polar regions.},
  year = {2007},
  journal = {Seminar on Polar meteorology, 4-8 September 2006},
  pages = {89-101},
  month = {2007},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}