@misc{hagner_european_politics_2001, 
author={Hagner, C.},
title={European politics to Reduce Lead in Gasoline - How did they Affect German Economics and Various Environmental Systems},
year={2001},
howpublished = {conference lecture (invited): Geesthacht (D); 19.-20.02.2001},
note = {Online available at: \url{} (DOI). Hagner, C.: European politics to Reduce Lead in Gasoline - How did they Affect German Economics and Various Environmental Systems. GKSS-Workshop - Integrated Assessment for Policy Analysis of Transboundary Pollutant Control. Geesthacht (D), 2001.}}