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• Aberdeen University (1)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (1)
• Aquatic Commons (17)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
• Archive of European Integration (11)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (8)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (1)
• Biodiversity Heritage Library, United States (13)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (50)
• Brock University, Canada (11)
• Bucknell University Digital Commons - Pensilvania - USA (1)
• Cambridge University Engineering Department Publications Database (5)
• CentAUR: Central Archive University of Reading - UK (9)
• Center for Jewish History Digital Collections (2)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (7)
• Cochin University of Science & Technology (CUSAT), India (2)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (4)
• Digital Commons - Montana Tech (1)
• DigitalCommons@The Texas Medical Center (1)
• DigitalCommons@University of Nebraska - Lincoln (2)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (1)
• DRUM (Digital Repository at the University of Maryland) (17)
• Duke University (1)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (2)
• Indian Institute of Science - Bangalore - Índia (3)
• Instituto Politécnico do Porto, Portugal (1)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (1)
• Portal de Revistas Científicas Complutenses - Espanha (1)
• Publishing Network for Geoscientific & Environmental Data (57)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (11)
• Queensland University of Technology - ePrints Archive (12)
• ReCiL - Repositório Científico Lusófona - Grupo Lusófona, Portugal (1)
• Repositorio de la Universidad de Cuenca (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (38)
• School of Medicine, Washington University, United States (37)
• Universidad Autónoma de Nuevo León, Mexico (1)
• Universidad de Alicante (1)
• Universidad del Rosario, Colombia (1)
• Universidad Politécnica de Madrid (3)
• Universidade Federal do Pará (1)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (1)
• University of Michigan (621)
• University of Queensland eSpace - Australia (1)
• University of Washington (7)
• USA Library of Congress (3)
• WestminsterResearch - UK (2)
• Worcester Research and Publications - Worcester Research and Publications - UK (1)