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• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Biodiversity Heritage Library, United States (55)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (113)
• CentAUR: Central Archive University of Reading - UK (10)
• Center for Jewish History Digital Collections (2)
• DI-fusion - The institutional repository of Université Libre de Bruxelles (1)
• Digital Peer Publishing (5)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (35)
• Dokumentenserver der Akademie der Wissenschaften zu Göttingen (62)
• Harvard University (10)
• Helda - Digital Repository of University of Helsinki (3)
• Helvia: Repositorio Institucional de la Universidad de Córdoba (1)
• Portal de Revistas Científicas Complutenses - Espanha (6)
• Publishing Network for Geoscientific & Environmental Data (261)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (2)
• Universidad Politécnica de Madrid (1)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (2)
• Université de Lausanne, Switzerland (2)
• University of Michigan (417)