"id","author_first1","author_last1","title","year","btitle","beditor_first","beditor_last","publisher","place","pages","keyword0","keyword1","keyword2","type" "862","Ursula","Braun","Prospects for Yemeni unity","1984","Contemporary Yemen: Politics and Historical Background","B.R.","Pridham","Croom Helm","London","261-69","Amad","History","Unification","chapter"