@misc{hagner_historical_review_1999, 
author={Hagner, C.},
title={Historical Review of European Gasoline Lead Content Regulations and Their Impact on German Industrial Markets},
year={1999},
howpublished = {conference paper,conference lecture: Weissenhaeuser Strand (D); 12.-15.04.1999},
note = {Online available at: \url{} (DOI). Hagner, C.: Historical Review of European Gasoline Lead Content Regulations and Their Impact on German Industrial Markets. In: Floeser, G. (Ed.): Proceedings of the Second Seminar, Institute of Hydrophysics. Weissenhaeuser Strand (D). 1999. 11.}}