@misc{krause_comparative_study_1995, 
author={Krause, P., Erbsloeh, B., Niedergesaess, R., Pepelnik, R., Prange, A.},
title={Comparative study of different digestion procedures using supplementary analytical methods for multielement-screening of more than 50 elements in sediments of river Elbe},
year={1995},
howpublished = {GKSS report},
note = {Krause, P.; Erbsloeh, B.; Niedergesaess, R.; Pepelnik, R.; Prange, A.: Comparative study of different digestion procedures using supplementary analytical methods for multielement-screening of more than 50 elements in sediments of river Elbe. Fresenius Journal of Analytical Chemistry. 1995. vol. 353, 3-11.}}