@misc{knoth_calibration_of_2001, 
author={Knoth, J.,Beaven, P.,Schwenke, H.,Dobler, M.,Reus, U.},
title={Calibration of total-reflection X-ray fluorescence using a nickel bulk sample},
year={2001},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Knoth, J.; Beaven, P.; Schwenke, H.; Dobler, M.; Reus, U.: Calibration of total-reflection X-ray fluorescence using a nickel bulk sample. Spectrochimica Acta  B. 2001. vol. 56, 2275-2281.}}