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• Aberystwyth University Repository - Reino Unido (7)
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• Aquatic Commons (26)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (6)
• Aston University Research Archive (1)
• Biblioteca Digital da Câmara dos Deputados (4)
• Biblioteca Digital de la Universidad Católica Argentina (6)
• Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (8)
• Biodiversity Heritage Library, United States (8)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (2)
• Boston University Digital Common (19)
• Brock University, Canada (6)
• CaltechTHESIS (6)
• Cambridge University Engineering Department Publications Database (9)
• CentAUR: Central Archive University of Reading - UK (1)
• Center for Jewish History Digital Collections (17)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (103)
• Cochin University of Science & Technology (CUSAT), India (1)
• CORA - Cork Open Research Archive - University College Cork - Ireland (3)
• Digital Archives@Colby (1)
• DigitalCommons@University of Nebraska - Lincoln (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (14)
• Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (4)
• Duke University (2)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (1)
• Funes: Repositorio digital de documentos en Educación Matemática - Colombia (1)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (8)
• Greenwich Academic Literature Archive - UK (2)
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• Helda - Digital Repository of University of Helsinki (26)
• Indian Institute of Science - Bangalore - Índia (37)
• National Center for Biotechnology Information - NCBI (1)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (14)
• Portal de Revistas Científicas Complutenses - Espanha (2)
• Publishing Network for Geoscientific & Environmental Data (7)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (163)
• Queensland University of Technology - ePrints Archive (47)
• Repositório Científico da Universidade de Évora - Portugal (2)
• Repositorio Institucional de la Universidad Nacional Agraria (2)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (46)
• Research Open Access Repository of the University of East London. (1)
• SAPIENTIA - Universidade do Algarve - Portugal (2)
• School of Medicine, Washington University, United States (30)
• South Carolina State Documents Depository (12)
• Universidad del Rosario, Colombia (2)
• Universidade Federal do Pará (1)
• Université de Montréal, Canada (1)
• University of Michigan (134)