1. E. Howarth, Crash Course in Art, Barnes & Noble, New York, 1994.
2. F. Delamare, B. Guineau, Colors: The Story of Dyes and Pigments, Harry N. Abrams, Inc., Publishers, New York, 2000.
3. B.H. Berrie, in: E.W. Fitzhugh (Ed.), Artists’ Pigments: A Handbook of Their History and Characteristics, vol. 3, Oxford University Press, New York, 1997, p. 191.
4. Evaluation of Desorption/Ionization Mass Spectrometric Methods in the Forensic Applications of the Analysis of Inks on Paper