%0 conference lecture %@ %A Boumans, P., Prange, A. %D 1993 %J Spectrochimica Acta (Special Issue) %T Total-Reflection X-Ray Flourescence Spectrometry: Proceedings of the Fourth Workshop on Total-Reflection X-Ray Flourescence (TXRF); May 12-15, 1992 in Geesthacht %U %X