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• Applied Math and Science Education Repository - Washington - USA (4)
• Aquatic Commons (5)
• Archive of European Integration (6)
• Biodiversity Heritage Library, United States (7)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (4)
• Boston University Digital Common (1)
• Brock University, Canada (18)
• Bucknell University Digital Commons - Pensilvania - USA (1)
• CentAUR: Central Archive University of Reading - UK (4)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (1)
• Dalarna University College Electronic Archive (1)
• Digital Commons @ DU | University of Denver Research (1)
• Digital Commons at Florida International University (3)
• DigitalCommons@The Texas Medical Center (5)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (1)
• DRUM (Digital Repository at the University of Maryland) (1)
• Duke University (3)
• Harvard University (7)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (1)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (11)
• Queensland University of Technology - ePrints Archive (5)
• School of Medicine, Washington University, United States (1)
• South Carolina State Documents Depository (1)
• Universidad del Rosario, Colombia (1)
• University of Connecticut - USA (1)
• University of Michigan (895)
• USA Library of Congress (2)