James, Liz (2006). "Byzantine glass mosaic tesserae: Some material considerations". Byzantine and Modern Greek Studies. 30: 29–47. doi:10.1017/S0307013100015032.
jstor.org
Cormack, Robin (2008). "Rediscovering the Christ Pantocrator at Daphni". Journal of the Warburg and Courtauld Institutes. 71: 65. JSTOR20462776.