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• Aberystwyth University Repository - Reino Unido (1)
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• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (1)
• Biblioteca Digital da Câmara dos Deputados (5)
• Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (14)
• Biodiversity Heritage Library, United States (10)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (1)
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• CentAUR: Central Archive University of Reading - UK (1)
• Center for Jewish History Digital Collections (69)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (6)
• CORA - Cork Open Research Archive - University College Cork - Ireland (2)
• DI-fusion - The institutional repository of Université Libre de Bruxelles (2)
• Dokumentenserver der Akademie der Wissenschaften zu Göttingen (1)
• Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (3)
• DRUM (Digital Repository at the University of Maryland) (8)
• Duke University (4)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (2)
• Funes: Repositorio digital de documentos en Educación Matemática - Colombia (1)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (389)
• Greenwich Academic Literature Archive - UK (3)
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• Helda - Digital Repository of University of Helsinki (7)
• Indian Institute of Science - Bangalore - Índia (6)
• Instituto Politécnico do Porto, Portugal (3)
• Ministerio de Cultura, Spain (1)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (7)
• Portal de Revistas Científicas Complutenses - Espanha (9)
• Publishing Network for Geoscientific & Environmental Data (3)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (151)
• Queensland University of Technology - ePrints Archive (36)
• Repositorio Académico de la Universidad Nacional de Costa Rica (1)
• Repositório Científico da Universidade de Évora - Portugal (2)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (2)
• SAPIENTIA - Universidade do Algarve - Portugal (1)
• South Carolina State Documents Depository (29)
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• Université de Lausanne, Switzerland (4)
• University of Michigan (160)
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• WestminsterResearch - UK (2)
• Worcester Research and Publications - Worcester Research and Publications - UK (1)