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• JISC Information Environment Repository (1)
• Aberystwyth University Repository - Reino Unido (1)
• Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
• Applied Math and Science Education Repository - Washington - USA (2)
• Aquatic Commons (4)
• Archive of European Integration (3)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biblioteca Digital | Sistema Integrado de Documentación | UNCuyo - UNCUYO. UNIVERSIDAD NACIONAL DE CUYO. (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (10)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (11)
• Biodiversity Heritage Library, United States (122)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (117)
• Boston University Digital Common (2)
• Brock University, Canada (4)
• Bucknell University Digital Commons - Pensilvania - USA (2)
• Cambridge University Engineering Department Publications Database (45)
• CentAUR: Central Archive University of Reading - UK (39)
• Center for Jewish History Digital Collections (2)
• Central European University - Research Support Scheme (2)
• Centro Hospitalar do Porto (1)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (10)
• DI-fusion - The institutional repository of Université Libre de Bruxelles (1)
• Digital Commons @ DU | University of Denver Research (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (7)
• Duke University (2)
• Greenwich Academic Literature Archive - UK (1)
• Harvard University (5)
• Indian Institute of Science - Bangalore - Índia (15)
• Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (1)
• Massachusetts Institute of Technology (1)
• Memoria Académica - FaHCE, UNLP - Argentina (3)
• National Center for Biotechnology Information - NCBI (3)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (14)
• Portal de Revistas Científicas Complutenses - Espanha (1)
• Publishing Network for Geoscientific & Environmental Data (79)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (60)
• Queensland University of Technology - ePrints Archive (13)
• RCAAP - Repositório Científico de Acesso Aberto de Portugal (1)
• Repositório digital da Fundação Getúlio Vargas - FGV (1)
• Repositório do Centro Hospitalar de Lisboa Central, EPE - Centro Hospitalar de Lisboa Central, EPE, Portugal (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (15)
• School of Medicine, Washington University, United States (4)
• South Carolina State Documents Depository (5)
• Universidad Autónoma de Nuevo León, Mexico (1)
• Universidad Politécnica de Madrid (1)
• Universidade Complutense de Madrid (1)
• Université de Lausanne, Switzerland (3)
• University of Michigan (351)
• WestminsterResearch - UK (5)
• Worcester Research and Publications - Worcester Research and Publications - UK (1)