"id","author_first1","author_last1","title","year","publication","place","keyword0","keyword1","keyword2","keyword3","type" "1902","Gerd","Linde","Moskau und Aden: Partner stürzen, Bastionen bleiben","1987","Bericht des BIOst Nr. 37/1987","Köln","Nationalism","PDRY","Socialism","South Yemen","report"