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• Aquatic Commons (5)
• Archive of European Integration (8)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biodiversity Heritage Library, United States (196)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (5)
• Brock University, Canada (41)
• CentAUR: Central Archive University of Reading - UK (6)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (3)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (18)
• Digital Commons @ Winthrop University (2)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (1)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (4)
• Helda - Digital Repository of University of Helsinki (1)
• National Center for Biotechnology Information - NCBI (1)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (3)
• Queensland University of Technology - ePrints Archive (2)
• School of Medicine, Washington University, United States (1)
• South Carolina State Documents Depository (2)
• Universidad Politécnica de Madrid (2)
• Universitat de Girona, Spain (1)
• Université de Montréal, Canada (1)
• University of Michigan (689)