@misc{prange_determination_of_1993, 
author={Prange, A.,Boeddeker, H.,Kramer, K.},
title={Determination of trace elements in river water using Total-Reflection X-Ray Flourescence},
year={1993},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Prange, A.; Boeddeker, H.; Kramer, K.: Determination of trace elements in river water using Total-Reflection X-Ray Flourescence. Spectrochimica Acta  B. 1993. vol. 48, no. 2, 207-215.}}