Sandmann_Klaus
Links
- https://www.econ.uni-bonn.de/ifs/en/media-ifs/photos-faculty-members/sandmann_klaus-1.jpg/image_view_fullscreen
- https://www.econ.uni-bonn.de/ifs/en/media-ifs/photos-faculty-members/sandmann_klaus-1.jpg/@@download/image/Sandmann_Klaus.jpg