@misc{steger_stratospheric_ozone_1997, 
author={Steger, J.,Reichardt, J.,Serwazi, M.},
title={Stratospheric ozone loss in the winter 96/97 determined by Match},
year={1997},
howpublished = {conference lecture: Schliersee (D); September 22-26, 1997},
note = {Online available at: \url{} (DOI). Steger, J.; Reichardt, J.; Serwazi, M.: Stratospheric ozone loss in the winter 96/97 determined by Match. 4th European Symposium on Polar Stratospheric Ozone. Schliersee (D), 1997.}}