Ute Possekel, From Damascus to Edessa Travelogue of a visit to Syria and Turkey, in: Hugoye: Journal of Syriac Studies, Vol. 12.1, Beth Mardutho: The Syriac Institute and Gorgias Press 2009, 135-165
See:
Warwick Ball, Rome in the East: The Transformation of an Empire, Routledge 2014, p. 322
Ute Possekel, From Damascus to Edessa Travelogue of a visit to Syria and Turkey, in: Hugoye: Journal of Syriac Studies, Vol. 12.1, Beth Mardutho: The Syriac Institute and Gorgias Press 2009, 135-165