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• JISC Information Environment Repository (1)
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• Applied Math and Science Education Repository - Washington - USA (1)
• Aquatic Commons (1)
• Archive of European Integration (1)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (1)
• Aston University Research Archive (2)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biblioteca de Teses e Dissertações da USP (1)
• Biblioteca Digital | Sistema Integrado de Documentación | UNCuyo - UNCUYO. UNIVERSIDAD NACIONAL DE CUYO. (3)
• Biodiversity Heritage Library, United States (14)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (3)
• Boston University Digital Common (1)
• Brock University, Canada (43)
• Bucknell University Digital Commons - Pensilvania - USA (1)
• CentAUR: Central Archive University of Reading - UK (2)
• Center for Jewish History Digital Collections (15)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (1)
• CORA - Cork Open Research Archive - University College Cork - Ireland (3)
• Cornell: DigitalCommons@ILR (2)
• Digital Commons at Florida International University (2)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (3)
• DRUM (Digital Repository at the University of Maryland) (1)
• Harvard University (59)
• Helda - Digital Repository of University of Helsinki (2)
• Indian Institute of Science - Bangalore - Índia (1)
• Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (2)
• Ministerio de Cultura, Spain (1)
• Portal de Revistas Científicas Complutenses - Espanha (1)
• Publishing Network for Geoscientific & Environmental Data (3)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (2)
• Queensland University of Technology - ePrints Archive (16)
• ReCiL - Repositório Científico Lusófona - Grupo Lusófona, Portugal (1)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (2)
• School of Medicine, Washington University, United States (8)
• Universidad de Alicante (1)
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• Universitätsbibliothek Kassel, Universität Kassel, Germany (2)
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