@manual{76395,
  author = {Adrian Simmons and M. Hortal and G.A. Kelly and A. McNally and A. Untch and S. Uppala},
  title = {Analyses and forecasts of stratospheric winter polar vortex break-up: September 2002 in the Southern Hemisphere and related events from ECMWF operations and ERS-40},
  year = {2003},
  journal = {ERA-40 Project Report Series},
  number = {5},
  pages = {28},
  month = {03/2003},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}