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• Academic Archive On-line (Mid Sweden University; Sweden) (21)
• Academic Archive On-line (Stockholm University; Sweden) (3)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (28)
• Archive of European Integration (9)
• Aston University Research Archive (1)
• Biodiversity Heritage Library, United States (6)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (259)
• CentAUR: Central Archive University of Reading - UK (3)
• Dalarna University College Electronic Archive (275)
• Digital Peer Publishing (2)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (202)
• Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (64)
• Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (12)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (1)
• Martin Luther Universitat Halle Wittenberg, Germany (36)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (32)
• Université de Lausanne, Switzerland (19)
• Université de Montréal, Canada (1)
• University of Michigan (21)