"id","author_first1","author_last1","title","year","btitle","beditor_first","beditor_last","publisher","place","pages","keyword0","keyword1","keyword2","type" "965","Wilferd","Madelung","Islam in Yemen","1987","Yemen: 3000 Years of Art and Civilisation in Arabia Felix","Werner","Daum","Pinguin-Verlag","Innsbruck","174-77","Investment","Islam","Zaydi Islam","chapter"