@misc{schwenke_current_work_1991, 
author={Schwenke, H.,Knoth, J.,Weisbrod, U.},
title={Current work on total reflection X-ray fluorescence spectrometry at the GKSS Research Centre},
year={1991},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Schwenke, H.; Knoth, J.; Weisbrod, U.: Current work on total reflection X-ray fluorescence spectrometry at the GKSS Research Centre. X-Ray Spectrometry. 1991. vol. 20, 277-281.}}