Crutzen, P. J. Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;
Fishman, J., Creilson, J. K., Wozniak, A. E., & Crutzen, P. J. (2005). Interannual variability of stratospheric and tropospheric ozone determined from satellite measurements. Journal of Geophysical Research-Atmospheres, 110(D20): D20306. doi:10.1029/2005JD005868.