%0 journal article %@ 0049-8246 %A Knoth, J.,Beaven, P.A.,Michaelsen, C.,Schneider, H.,Schwenke, H. %D 1999 %J X-Ray Spectrometry %N %P 110 %T A tunable focusing monochromator for Total Reflection X-ray Fluorescence spectrometers %U %X