- A Monte Carlo model for studying the microheterogeneity of trace elements in reference materials by means of synchrotron microscopic X-ray fluorescence. Kempenaers, L., Janssens, K., Vincze, L., Vekemans, B., Somogyi, A., Drakopoulos, M., Simionovici, A., Adams, F. Anal. Chem. (2002)