... needed].] References^ Gerhard Auer, Peter Woditsch, Axel Westerhaus, Jürgen Kischkewitz, Wolf-Dieter Griebler and Marcel Liedekerke "Pigments, ... Retrieved 2011-10-24. "Founded in 1902 by Henrick J. Krebs, Krebs Pigments and Chemical Company produced lithopone, a ... Lithopone Composition and Process of Making Same. ^ Lithopone. 2010. ^ W. J. O'Brien (1915). "A Study of Lithopone". Journal of Physical ...