@misc{prange_multielement_determination_1989, 
author={Prange, A., Boeddeker, H., Michaelis, W.},
title={Multi-element determination of trace elements in whole blood and blood serum by TXRF},
year={1989},
howpublished = {GKSS report},
note = {Prange, A.; Boeddeker, H.; Michaelis, W.: Multi-element determination of trace elements in whole blood and blood serum by TXRF. Fresenius Journal of Analytical Chemistry. 1989. vol. 335, no. 8, 914-918.}}