"id","author_first1","author_last1","title","year","btitle","beditor_first","beditor_last","publisher","place","pages","keyword0","keyword1","keyword2","keyword3","keyword4","type" "1787","Hans","Gebhardt","Entwicklung von Straßenmärkten in der Arabischen Republik Jemen unter dem Einfluß des Fernstraßenbaus","1984","Entwicklungsprozesse in der Arabischen Republik Jemen","Kopp","Horst","Dr. Ludwig Reichert Verlag","Wiesbaden","27-54","Internal","Markets","Migration","Remittances","Roads","chapter"