1. J. Clottes: Chauvet Cave: The Art of Earliest Times (Univ. Utah Press, Salt Lake City 2003)
2. A. Schopen: Tinten und Tuschen des arabisch islamischen Mittelalters (Vandenhoeck Ruprecht, Göttingen 2006), in German
3. D. Carvalho: Forty Centuries of Ink (BiblioBazaar LLC, Charleston 2008)
4. C.C. Pines: The story of ink, Am. J. Police Sci. 2, 290–301 (1931)
5. C.-P. Li: The Chemical Arts of Old China (Journal of Chemical Education, Easton 1948)