Opaiţ, Andrei, and Charikleia Diamanti. “Imperial Stamps on Early Byzantine Amphoras The Athenian Agora Examples”. Rei Cretariae Romanae Fautorum Acta, vol. 43, Jan. 2015, pp. 55-61, https://archaeopresspublishing.com/ojs/index.php/RCRF/article/view/2101.