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• Academic Research Repository at Institute of Developing Economies (1)
• Applied Math and Science Education Repository - Washington - USA (9)
• Aquatic Commons (28)
• Archive of European Integration (16)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (2)
• Biodiversity Heritage Library, United States (3)
• Blue Tiger Commons - Lincoln University - USA (1)
• Brock University, Canada (1)
• Bucknell University Digital Commons - Pensilvania - USA (1)
• CentAUR: Central Archive University of Reading - UK (9)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (5)
• Digital Commons @ DU | University of Denver Research (2)
• Digital Commons @ Winthrop University (1)
• Digital Commons at Florida International University (1)
• Digital Howard @ Howard University | Howard University Research (1)
• DigitalCommons@The Texas Medical Center (5)
• DigitalCommons@University of Nebraska - Lincoln (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (1)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (1)
• National Center for Biotechnology Information - NCBI (1)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (2)
• Queensland University of Technology - ePrints Archive (7)
• School of Medicine, Washington University, United States (2)
• University of Michigan (890)
• University of Queensland eSpace - Australia (1)