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• Aquatic Commons (42)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
• Archive of European Integration (2)
• 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: (2)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (7)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (1)
• Biodiversity Heritage Library, United States (7)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (1)
• Boston University Digital Common (2)
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• Cambridge University Engineering Department Publications Database (17)
• CentAUR: Central Archive University of Reading - UK (26)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (2)
• Cochin University of Science & Technology (CUSAT), India (1)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (2)
• Digital Archives@Colby (1)
• Digital Commons at Florida International University (4)
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• DRUM (Digital Repository at the University of Maryland) (1)
• Duke University (2)
• Ecology and Society (1)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (3)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (1)
• Greenwich Academic Literature Archive - UK (7)
• Helda - Digital Repository of University of Helsinki (1)
• Indian Institute of Science - Bangalore - Índia (3)
• Instituto Superior de Psicologia Aplicada - Lisboa (1)
• Ministerio de Cultura, Spain (1)
• Portal de Revistas Científicas Complutenses - Espanha (4)
• Publishing Network for Geoscientific & Environmental Data (2)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (17)
• Queensland University of Technology - ePrints Archive (56)
• Repositório Científico do Instituto Politécnico de Lisboa - Portugal (2)
• Repositório do Centro Hospitalar de Lisboa Central, EPE - Centro Hospitalar de Lisboa Central, EPE, Portugal (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (1)
• Research Open Access Repository of the University of East London. (1)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
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• USA Library of Congress (32)
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