1. Scientific Assessment of Ozone Depletion 2002, Report 47 of the World Meteorological Association’s Global Ozone Research and Monitoring Project, National Oceanic and Atmospheric Administration, National Aeronautics and Space Administration, United Nations Environment Programme, World Meteorological Organization, European Commission
2. National Oceanic and Atmospheric Administration (NOAA); the data can be found on the web site: http://www.cmdl.noaa.gov/infodata/ftpdata.html
3. Detection of HBr and upper limit for HOBr: Bromine partitioning in the stratosphere
4. Scientific Assessment of Ozone Depletion, 1991, Report 25 of the World Meteorological Association’s Global Ozone Research and Monitoring Project, National Oceanic and Atmospheric Administration, National Aeronautics and Space Administration, United Nations Environment Programme, World Meteorological Organization, European Commission
5. The changing stratosphere