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• Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (5)
• Applied Math and Science Education Repository - Washington - USA (1)
• Aquatic Commons (2)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (2)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (1)
• Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (1)
• Biodiversity Heritage Library, United States (1)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (19)
• Brock University, Canada (1)
• CaltechTHESIS (1)
• CentAUR: Central Archive University of Reading - UK (19)
• Center for Jewish History Digital Collections (6)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (122)
• Cochin University of Science & Technology (CUSAT), India (1)
• CORA - Cork Open Research Archive - University College Cork - Ireland (1)
• Digital Commons at Florida International University (1)
• Digital Repository at Iowa State University (1)
• DigitalCommons@University of Nebraska - Lincoln (2)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (2)
• Duke University (1)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (5)
• Helda - Digital Repository of University of Helsinki (7)
• Ministerio de Cultura, Spain (1)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (1)
• Portal de Revistas Científicas Complutenses - Espanha (2)
• Publishing Network for Geoscientific & Environmental Data (733)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (1)
• Queensland University of Technology - ePrints Archive (7)
• Repositório Científico do Instituto Politécnico de Lisboa - Portugal (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (8)
• SAPIENTIA - Universidade do Algarve - Portugal (1)
• School of Medicine, Washington University, United States (1)
• Universidade de Lisboa - Repositório Aberto (1)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (2)
• Université de Montréal, Canada (1)
• University of Michigan (12)
• WestminsterResearch - UK (2)