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• Aberystwyth University Repository - Reino Unido (1)
• Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (4)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (2)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Aquatic Commons (8)
• Archive of European Integration (1)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (4)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (5)
• Biodiversity Heritage Library, United States (28)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (26)
• Boston University Digital Common (7)
• Brock University, Canada (2)
• Bucknell University Digital Commons - Pensilvania - USA (2)
• Cambridge University Engineering Department Publications Database (6)
• CentAUR: Central Archive University of Reading - UK (22)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (13)
• Cochin University of Science & Technology (CUSAT), India (2)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (21)
• Digital Commons - Michigan Tech (1)
• Digital Commons @ DU | University of Denver Research (1)
• DigitalCommons@The Texas Medical Center (8)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (1)
• Duke University (2)
• Greenwich Academic Literature Archive - UK (1)
• Harvard University (520)
• Helda - Digital Repository of University of Helsinki (2)
• Indian Institute of Science - Bangalore - Índia (4)
• Massachusetts Institute of Technology (1)
• Ministerio de Cultura, Spain (2)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (3)
• Portal de Revistas Científicas Complutenses - Espanha (1)
• Publishing Network for Geoscientific & Environmental Data (105)
• QSpace: Queen's University - Canada (1)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (27)
• Queensland University of Technology - ePrints Archive (16)
• Repositorio Institucional de la Universidad Pública de Navarra - Espanha (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (21)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
• School of Medicine, Washington University, United States (2)
• South Carolina State Documents Depository (1)
• Universidad de Alicante (1)
• Universidad del Rosario, Colombia (1)
• Universidad Politécnica de Madrid (1)
• Université de Lausanne, Switzerland (1)
• University of Michigan (38)
• University of Queensland eSpace - Australia (1)
• USA Library of Congress (40)