1. A Century of Chemistry;Bäumler,1968
2. Artists' Pigments;Berrie,1997
3. Examination of the Book of Kells using micro-Raman spectroscopy;Bioletti;J. Raman Spectrosc.,2009
4. High Performance Pigments, Dioxazine Violet Pigments;Chamberlain,2002
5. Pots with coloured powders from the Forum of Pompeii;Cottica,2007