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• Aberystwyth University Repository - Reino Unido (1)
• Aquatic Commons (1)
• CentAUR: Central Archive University of Reading - UK (1)
• Center for Jewish History Digital Collections (1)
• Digital Commons - Montana Tech (2)
• Digital Commons @ Winthrop University (2)
• DigitalCommons@The Texas Medical Center (2)
• Duke University (1)
• Harvard University (4)
• Helda - Digital Repository of University of Helsinki (1)
• Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (4)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (2)
• Queensland University of Technology - ePrints Archive (80)
• Repositorio Académico de la Universidad Nacional de Costa Rica (1)
• South Carolina State Documents Depository (653)
• University of Michigan (189)