7 Two subjects in neighboring cubicles

Links
- https://www.econ.uni-bonn.de/bonneconlab/images/7-two-subjects-in-neighboring-cubicles.jpg/image_view_fullscreen
- https://www.econ.uni-bonn.de/bonneconlab/images/7-two-subjects-in-neighboring-cubicles.jpg/@@download/image/72014Two subjects in neighboring cubicles.jpg