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• Aquatic Commons (14)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (100)
• Archive of European Integration (1)
• Aston University Research Archive (4)
• Biodiversity Heritage Library, United States (1)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (91)
• CentAUR: Central Archive University of Reading - UK (1)
• Digital Peer Publishing (20)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (273)
• Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (1)
• Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (21)
• Institutional Repository of Leibniz University Hannover (2)
• Martin Luther Universitat Halle Wittenberg, Germany (1)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (1)
• Portal de Revistas Científicas Complutenses - Espanha (3)
• Publishing Network for Geoscientific & Environmental Data (57)
• Queensland University of Technology - ePrints Archive (1)
• SerWisS - Server für Wissenschaftliche Schriften der Fachhochschule Hannover (14)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (165)
• University of Innsbruck Digital Library - Austria (1)
• University of Michigan (92)