Schmidt, U., Rudolph, J., Johnen, F. J., Ehhalt, D. H., Volz, A., Röth, E. P., et al. (1981). The vertical distribution of CH3Cl, CFCl3, and CF2Cl2 in the midlatitude stratosphere. In Proc. International Ozone Symposium, IAMAP, Boulder (pp. 816-823).