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• Aquatic Commons (309)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (6)
• Biblioteca Digital da Câmara dos Deputados (7)
• Biblioteca Digital de la Universidad Católica Argentina (4)
• Biodiversity Heritage Library, United States (18)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (47)
• CaltechTHESIS (1)
• Cambridge University Engineering Department Publications Database (1)
• CentAUR: Central Archive University of Reading - UK (3)
• Center for Jewish History Digital Collections (49)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (1)
• Digital Peer Publishing (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (182)
• 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 (5)
• Harvard University (1)
• Helda - Digital Repository of University of Helsinki (21)
• Indian Institute of Science - Bangalore - Índia (7)
• National Center for Biotechnology Information - NCBI (1)
• Publishing Network for Geoscientific & Environmental Data (8)
• Queensland University of Technology - ePrints Archive (13)
• Repositório Institucional da Universidade Estadual de São Paulo - UNESP (1)
• Repositorio Institucional de la Universidad Nacional Agraria (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (3)
• Universidad Autónoma de Nuevo León, Mexico (1)
• Universidad del Rosario, Colombia (1)
• Universidade Metodista de São Paulo (5)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (6)
• University of Michigan (286)