University of Erlangen-Nuremberg
Europe : Germany
- America : Canada
- Department of Economics, Princeton UniversityAmerica : United States (Mid-Atlantic)
- America : United States (Mid-Atlantic)
- Europe : France (Paris Île-de-France)
- AmericaEuropeMiddle East : Israel
- University of LeidenEurope : Netherlands
- Middle East : Israel
- National Library of Israel, Hebrew University of JerusalemMiddle East : Israel
- Europe : Netherlands
- Europe : United Kingdom
- America : United States (Rocky Mountain)