@misc{wilken_mercury_and_1994, 
author={Wilken, R.-D.},
title={Mercury and mercury species analysis: an overview},
year={1994},
howpublished = {conference lecture: Bombay (IND); 13.12.1994},
note = {Online available at: \url{} (DOI). Wilken, R.: Mercury and mercury species analysis: an overview. Vortrag im B.A.R.C.. Bombay (IND), 1994.}}