@misc{markert_aspects_of_1992, 
author={Markert, B.},
title={Aspects of cleaning environmental material for multielement analysis: F. e. plant samples},
year={1992},
howpublished = {journal article},
note = {Markert, B.: Aspects of cleaning environmental material for multielement analysis: F. e. plant samples. Fresenius Journal of Analytical Chemistry. 1992. vol. 342, 409-412.}}