"id","author_first1","author_last1","title","year","publisher","place","author_first2","author_last2","keyword0","keyword1","type" "683","Fritz","Becker","Entwicklungseffekte durch Verkehrserschließung in der Arabischen Republik Jemen","1984","Institut für Entwicklungsforschung und Entwicklungspolitik, Ruhr-Universität","Bochum","Karlheinz","Hottes","Maps","Markets","book"