Author/Creator
- Friedrich-Ebert-Stiftung140
- International Labour Office135
- Unesco130
- Accademia nazionale dei Lincei85
- Centre national de la recherche scientifique (France)81
- Konrad-Adenauer-Stiftung78
- Instituto Latinoamericano de Investigaciones Sociales59
- Friedrich-Naumann-Stiftung56
- Organisation for Economic Co-operation and Development55
- Centre culturel international de Cerisy-la-Salle53
- International Economic Association49
- Yayasan Tenaga Kerja Indonesia47
- European Conference of Ministers of Transport. Economic Research Centre46
- Food and Agriculture Organization of the United Nations46
- Istituto italiano per gli studi filosofici42
- Congreso Mundial Vasco (2nd : 1987 : San Sebastián, Spain, etc.)39
- Institute of Southeast Asian Studies37
- American Association for the Advancement of Science36
- American Enterprise Institute for Public Policy Research34
- Evangelische Akademie Loccum34