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• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Aquatic Commons (21)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (24)
• Archive of European Integration (33)
• Aston University Research Archive (1)
• Biblioteca Valenciana Digital - Ministerio de Educación, Cultura y Deporte - Valencia - Espanha (1)
• Biodiversity Heritage Library, United States (10)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (154)
• CentAUR: Central Archive University of Reading - UK (1)
• Center for Jewish History Digital Collections (15)
• Dalarna University College Electronic Archive (2)
• Digital Peer Publishing (7)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (471)
• Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (5)
• Helda - Digital Repository of University of Helsinki (1)
• Martin Luther Universitat Halle Wittenberg, Germany (1)
• Publishing Network for Geoscientific & Environmental Data (16)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (3)
• Queensland University of Technology - ePrints Archive (2)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
• SerWisS - Server für Wissenschaftliche Schriften der Fachhochschule Hannover (2)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (76)
• Université de Lausanne, Switzerland (1)
• Université de Montréal, Canada (1)
• University of Michigan (146)