@misc{knoth_a_tunable_1999, 
author={Knoth, J.,Beaven, P.A.,Michaelsen, C.,Schneider, H.,Schwenke, H.},
title={A tunable focusing monochromator for Total Reflection X-ray Fluorescence spectrometers},
year={1999},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Knoth, J.; Beaven, P.; Michaelsen, C.; Schneider, H.; Schwenke, H.: A tunable focusing monochromator for Total Reflection X-ray Fluorescence spectrometers. X-Ray Spectrometry. 1999. vol. 28, 110.}}