"id","author_first1","author_last1","title","year","publication","volume","issue","pages","keyword0","keyword1","keyword2","type"
"1494","Horst","Kopp","Die Arabische Republik Jemen. Entwicklungsprobleme und Entwicklungsmöglichkeiten eines rohstroffarmen Landes der Vierten Welt","1978","Geographische Rundschau","30","3","88-93","Economy","Regulations","YAR","journal"