@misc{krapp_solid_diluted_1999, 
author={Krapp, M.,Neidhart, B.},
title={Solid diluted calibrants: a new concept for the preparation of standard solutions. Part I: Principles and application to Cr (VI)},
year={1999},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Krapp, M.; Neidhart, B.: Solid diluted calibrants: a new concept for the preparation of standard solutions. Part I: Principles and application to Cr (VI). Fresenius Journal of Analytical Chemistry. 1999. vol. 364, 15-21.}}