{"id":"001509625","type":"book","title":"Die Residenz des Kalifen Hārūn Ar-Rašīd in Ar-Raqqa / Ar-Rāfiqa (Syrien)","publisher":"de Gruyter","publisher-place":"Berlin, Boston","author":[{"family":"Siegel","given":"Ulrike"}],"issued":{"raw":"2017"}}