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• Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
• Adam Mickiewicz University Repository (1)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Applied Math and Science Education Repository - Washington - USA (2)
• Aquatic Commons (7)
• Archive of European Integration (13)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (1)
• Aston University Research Archive (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (3)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (2)
• Biodiversity Heritage Library, United States (29)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (19)
• Boston University Digital Common (5)
• Brock University, Canada (3)
• Bucknell University Digital Commons - Pensilvania - USA (2)
• Cambridge University Engineering Department Publications Database (1)
• CentAUR: Central Archive University of Reading - UK (8)
• Center for Jewish History Digital Collections (22)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (6)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (1)
• CORA - Cork Open Research Archive - University College Cork - Ireland (1)
• Dalarna University College Electronic Archive (1)
• Deakin Research Online - Australia (21)
• Digital Commons @ DU | University of Denver Research (2)
• Digital Howard @ Howard University | Howard University Research (3)
• DigitalCommons@The Texas Medical Center (1)
• DigitalCommons@University of Nebraska - Lincoln (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (1)
• DRUM (Digital Repository at the University of Maryland) (1)
• Greenwich Academic Literature Archive - UK (1)
• Harvard University (543)
• Helda - Digital Repository of University of Helsinki (1)
• Indian Institute of Science - Bangalore - Índia (2)
• Memoria Académica - FaHCE, UNLP - Argentina (6)
• National Center for Biotechnology Information - NCBI (3)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (1)
• Publishing Network for Geoscientific & Environmental Data (29)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (12)
• Queensland University of Technology - ePrints Archive (16)
• Repositório Aberto da Universidade Aberta de Portugal (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (4)
• School of Medicine, Washington University, United States (1)
• The Scholarly Commons | School of Hotel Administration; Cornell University Research (1)
• Universidad Autónoma de Nuevo León, Mexico (1)
• Universidad Politécnica de Madrid (7)
• Université de Lausanne, Switzerland (2)
• Université de Montréal, Canada (5)
• University of Michigan (135)
• USA Library of Congress (64)
• Worcester Research and Publications - Worcester Research and Publications - UK (1)