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• KUPS-Datenbank - Universität zu Köln - Kölner UniversitätsPublikationsServer (1)
• Aberystwyth University Repository - Reino Unido (1)
• Aquatic Commons (283)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (3)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (7)
• Aston University Research Archive (3)
• Biblioteca Digital da Câmara dos Deputados (3)
• Biblioteca Digital de la Universidad Católica Argentina (5)
• Biblioteca Valenciana Digital - Ministerio de Educación, Cultura y Deporte - Valencia - Espanha (1)
• Biodiversity Heritage Library, United States (1)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (23)
• CaltechTHESIS (1)
• Cambridge University Engineering Department Publications Database (1)
• Center for Jewish History Digital Collections (75)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (1)
• Dalarna University College Electronic Archive (1)
• Digital Peer Publishing (3)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (166)
• Dokumentenserver der Akademie der Wissenschaften zu Göttingen (1)
• Düsseldorfer Dokumenten- und Publikationsservice (1)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (1)
• Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (2)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (10)
• Harvard University (4)
• Helda - Digital Repository of University of Helsinki (19)
• Indian Institute of Science - Bangalore - Índia (7)
• Institutional Repository of Leibniz University Hannover (4)
• Martin Luther Universitat Halle Wittenberg, Germany (1)
• Portal de Revistas Científicas Complutenses - Espanha (1)
• Publishing Network for Geoscientific & Environmental Data (28)
• Queensland University of Technology - ePrints Archive (15)
• Repositorio Institucional de la Universidad Nacional Agraria (1)
• SerWisS - Server für Wissenschaftliche Schriften der Fachhochschule Hannover (1)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (2)
• Université de Montréal (1)
• Université de Montréal, Canada (1)
• University of Michigan (311)
• USA Library of Congress (1)
• WestminsterResearch - UK (1)