1. Freeman, H.S., Peters, A.T. (eds.): Colorants for Non-textile Applications. Elsevier Science, Amsterdam (2000)
2. Welham, R.D.: The early history of the synthetic dye industry: part 1 the chemical industry. J. Soc. Dye Col. 79(3), 98–105 (1963)
3. Rys, P., Zollinger, H.: Fundamentals of the Chemistry and Application of Dyes. Wiley-Interscience, London (1990)
4. Peter, J.T., Anthony, S.T.: A history of the international dyestuff industry. Am. Dyestuff Rep. 81(11), 59–100 (1992)
5. Welham, R.D.: The early history of the synthetic dye industry: part 2 the industrial history (1856–1900). J. Soc. Dye Col. 79(3), 146–152 (1963)