1. Becker, K.H. and Lobel, J. (eds.) (1985): Atmosphärische Spurenstoffe und ihr physikalisch-chemisches Verhalten (Atmospheric trace constituents and their physical-chemical behaviour). Springer-Verlag, Berlin.
2. Dodge, M.C. (1977): Combined use of modelling techniques and smog chamber data to derive ozone-precursor relationships. In: Proc. Int. Conf. on Photochemical Oxidant Pollution and Its Control, Vol. II. EPA-600/3–770016, 881–889.
3. Fabian, P. (1989): Atmosphäre und Umwelt (Atmosphere and environment), 3rd ed. Springer-Verlag, Berlin.
4. Friedli, H. et al. (1986): Ice core record of the 13C/12C ratio of atmospheric CO2in the past two centuries. Nature, 324, 237–239.
5. Neftel, A. et al. (1982): Ice core sample measurements give atmospheric CO2 content during the past 40,000 years. Nature, 295, 220–223.