@misc{hagner_european_regulations_2000, 
author={Hagner, C.},
title={European regulations to reduce lead emissions from automobiles - Did they have an economic impact on the German gasoline and automobile markets?},
year={2000},
howpublished = {journal article},
doi = {https://doi.org/10.1007/s101130000019},
note = {Online available at: \url{https://doi.org/10.1007/s101130000019} (DOI). Hagner, C.: European regulations to reduce lead emissions from automobiles - Did they have an economic impact on the German gasoline and automobile markets?. Regional Environmental Change. 2000. vol. 1, no. 3-4, 135-151. DOI: 10.1007/s101130000019}}