@misc{michaelis_trace_analysis_1991, author={Michaelis, W.}, title={Trace analysis of geological and environmental samples}, year={1991}, howpublished = {conference paper,conference lecture: Dresden (D); August 26-30, 1991}, note = {Online available at: \url{} (DOI). Michaelis, W.: Trace analysis of geological and environmental samples. In: Ernst-Moritz-Arndt-Universitaet Greifswald (Ed.): Proceedings of the 7th EUROCLAY Conference. Dresden (D). 1991. 761-766.}}