http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Maurits van Loon; Results of the Excavation at Tall Bouqras; ersch. 1986?; in Arabic, translated and abridged by Q?sim ?uwair.
Symposium international "Histoire de Deir ez-Zūr"