%0 journal article %@ 0584-8547 %A Schwenke, H., Knoth, J., Guenther, R., Wiener, G., Bormann, R. %D 1997 %J Spectrochimica Acta B %P 795-803 %T Depth profiling using total reflection X-ray fluorescence spectrometry alone and in combination with ion beam sputtering %U %X