1. Boardman , J. 2001 Greek gems and finger rings: early Bronze Age to late Classical
2. The use and effect of Attic seals;Bonner;Classical Philology,1908
3. Furtwängler , A. 1900 Die antiken Gemmen. Geschichte der Steinschneidekunst im klassischen Altertum
4. Henig , M. 1994 Classical gems. Ancient and modern intaglios and cameos in the Fitzwilliam Museum