@misc{ricardo_improved_analyzer_2001, 
author={Ricardo, P.,Wiesmann, J.,Nowak, C.,Michaelsen, C.,Bormann, R.},
title={Improved analyzer multilayers for aluminium and boron detection with X-ray flourescence},
year={2001},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Ricardo, P.; Wiesmann, J.; Nowak, C.; Michaelsen, C.; Bormann, R.: Improved analyzer multilayers for aluminium and boron detection with X-ray flourescence. Applied Optics. 2001. vol. 40, no. 16, 2747-2754.}}