@misc{markert_multielementanalytik_in_1989, author={Markert, B.}, title={Multielementanalytik in Oekosystemen}, year={1989}, howpublished = {journal article}, note = {Online available at: \url{} (DOI). Markert, B.: Multielementanalytik in Oekosystemen. Uni Osnabrueck. 1989. vol. 1, no. 2, 6-9.}}