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• Andina Digital - Repositorio UASB-Digital - Universidade Andina Simón Bolívar (2)
• Applied Math and Science Education Repository - Washington - USA (53)
• Aquatic Commons (80)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (5)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (1)
• Biodiversity Heritage Library, United States (2)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (50)
• Boston University Digital Common (1)
• Brock University, Canada (23)
• Bucknell University Digital Commons - Pensilvania - USA (1)
• Cambridge University Engineering Department Publications Database (25)
• CentAUR: Central Archive University of Reading - UK (18)
• Center for Jewish History Digital Collections (4)
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• Digital Commons - Michigan Tech (2)
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• DigitalCommons@University of Nebraska - Lincoln (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (3)
• DRUM (Digital Repository at the University of Maryland) (273)
• Duke University (1)
• FAUBA DIGITAL: Repositorio institucional científico y académico de la Facultad de Agronomia de la Universidad de Buenos Aires (1)
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• Indian Institute of Science - Bangalore - Índia (2)
• Memoria Académica - FaHCE, UNLP - Argentina (6)
• Ministerio de Cultura, Spain (4)
• Publishing Network for Geoscientific & Environmental Data (46)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (15)
• Queensland University of Technology - ePrints Archive (22)
• Repositorio de la Universidad de Cuenca (2)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (7)
• School of Medicine, Washington University, United States (1)
• Universidad del Rosario, Colombia (25)
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