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• JISC Information Environment Repository (1)
• Aberystwyth University Repository - Reino Unido (2)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (5)
• Applied Math and Science Education Repository - Washington - USA (6)
• Aquatic Commons (6)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (13)
• Archive of European Integration (1)
• Aston University Research Archive (2)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (1)
• Biblioteca Valenciana Digital - Ministerio de Educación, Cultura y Deporte - Valencia - Espanha (3)
• Bibloteca do Senado Federal do Brasil (1)
• Biodiversity Heritage Library, United States (12)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (51)
• Boston University Digital Common (1)
• Brock University, Canada (26)
• Cambridge University Engineering Department Publications Database (13)
• CentAUR: Central Archive University of Reading - UK (7)
• Center for Jewish History Digital Collections (2)
• Coffee Science - Universidade Federal de Lavras (2)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (10)
• CORA - Cork Open Research Archive - University College Cork - Ireland (1)
• Digital Commons - Michigan Tech (1)
• Digital Commons at Florida International University (1)
• Digital Peer Publishing (2)
• Digital Repository at Iowa State University (1)
• DigitalCommons@The Texas Medical Center (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (94)
• Duke University (2)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (5)
• Greenwich Academic Literature Archive - UK (1)
• Harvard University (17)
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• Martin Luther Universitat Halle Wittenberg, Germany (1)
• Memoria Académica - FaHCE, UNLP - Argentina (6)
• Ministerio de Cultura, Spain (2)
• National Center for Biotechnology Information - NCBI (2)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (5)
• Publishing Network for Geoscientific & Environmental Data (39)
• QSpace: Queen's University - Canada (96)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (22)
• Queensland University of Technology - ePrints Archive (22)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (10)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
• South Carolina State Documents Depository (2)
• Universidad Autónoma de Nuevo León, Mexico (2)
• Universidad del Rosario, Colombia (4)
• Universidad Politécnica de Madrid (1)
• Universitat de Girona, Spain (1)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (10)
• Université de Lausanne, Switzerland (1)
• Université de Montréal, Canada (10)
• University of Michigan (440)