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• Aquatic Commons (171)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (2)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (6)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (3)
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• Biodiversity Heritage Library, United States (14)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (13)
• Boston University Digital Common (5)
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• Bucknell University Digital Commons - Pensilvania - USA (3)
• Cambridge University Engineering Department Publications Database (5)
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• Center for Jewish History Digital Collections (1)
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• Chinese Academy of Sciences Institutional Repositories Grid Portal (1)
• Digital Archives@Colby (1)
• Digital Commons - Montana Tech (2)
• Digital Commons @ DU | University of Denver Research (2)
• Digital Commons @ Winthrop University (6)
• Digital Commons at Florida International University (2)
• DigitalCommons@The Texas Medical Center (5)
• DigitalCommons@University of Nebraska - Lincoln (5)
• DRUM (Digital Repository at the University of Maryland) (1)
• Duke University (39)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (2)
• FAUBA DIGITAL: Repositorio institucional científico y académico de la Facultad de Agronomia de la Universidad de Buenos Aires (1)
• FUNDAJ - Fundação Joaquim Nabuco (1)
• Greenwich Academic Literature Archive - UK (2)
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• Helda - Digital Repository of University of Helsinki (1)
• Illinois Digital Environment for Access to Learning and Scholarship Repository (3)
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• Memoria Académica - FaHCE, UNLP - Argentina (16)
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• Portal de Revistas Científicas Complutenses - Espanha (7)
• Publishing Network for Geoscientific & Environmental Data (38)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (10)
• Queensland University of Technology - ePrints Archive (28)
• RDBU - Repositório Digital da Biblioteca da Unisinos (1)
• Repositório Institucional da Universidade de Aveiro - Portugal (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 (2)
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