2
   
4
   
8
Published: Berlin, BDEW, 2008-
   
9
   
10
   
11
   
12
   
14
Published: Berlin, Bundesministerium für Wirtschaft und Technologie, 1999-
   
15
Published: Hamburg, HWWI Institute of International Economics, 2009
   
17
Published: Hamburg, Diplom.de, Diplomarbeiten-Agentur, 2001
   
18
   
19
Published: München, oekom, Ges. für Ökolog. Komm., 2013
   
20
   

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