@misc{schnier_a_new_1991, 
author={Schnier, C.,Willumeit, R.,Michaelis, W.},
title={A new procedure for the determination of mercury in air using neutron activation},
year={1991},
howpublished = {conference lecture: Geesthacht (D); September 23-24, 1991},
note = {Online available at: \url{} (DOI). Schnier, C.; Willumeit, R.; Michaelis, W.: A new procedure for the determination of mercury in air using neutron activation. 3rd International Workshop on Modelling the Atmospheric Transport and Deposition of Mercury. Geesthacht (D), 1991.}}