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• Aberdeen University (3)
• Academic Archive On-line (Stockholm University; Sweden) (1)
• Applied Math and Science Education Repository - Washington - USA (1)
• Archive of European Integration (2)
• Aston University Research Archive (18)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (3)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (1)
• Biblioteca Valenciana Digital - Ministerio de Educación, Cultura y Deporte - Valencia - Espanha (1)
• Bibloteca do Senado Federal do Brasil (1)
• Biodiversity Heritage Library, United States (2)
• Blue Tiger Commons - Lincoln University - USA (12)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (17)
• Brock University, Canada (16)
• CentAUR: Central Archive University of Reading - UK (25)
• CORA - Cork Open Research Archive - University College Cork - Ireland (2)
• Digital Archives@Colby (2)
• Digital Commons - Montana Tech (22)
• Digital Commons @ DU | University of Denver Research (2)
• Digital Commons @ Winthrop University (1)
• Digital Commons at Florida International University (1)
• Digital Repository at Iowa State University (1)
• DigitalCommons@The Texas Medical Center (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (20)
• Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (2)
• Harvard University (8)
• Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (24)
• Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (1)
• Martin Luther Universitat Halle Wittenberg, Germany (1)
• Massachusetts Institute of Technology (1)
• Ministerio de Cultura, Spain (1)
• National Center for Biotechnology Information - NCBI (12)
• Open Access Repository of Association for Learning Technology (ALT) (1)
• Portal de Revistas Científicas Complutenses - Espanha (1)
• Publishing Network for Geoscientific & Environmental Data (246)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (11)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
• Sistema UNA-SUS (1)
• South Carolina State Documents Depository (2)
• Universidad Autónoma de Nuevo León, Mexico (1)
• Universidad del Rosario, Colombia (4)
• Université de Lausanne, Switzerland (2)
• Université de Montréal, Canada (1)
• University of Michigan (181)
• University of Queensland eSpace - Australia (22)
• Worcester Research and Publications - Worcester Research and Publications - UK (1)