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• Adam Mickiewicz University Repository (1)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (1)
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• Applied Math and Science Education Repository - Washington - USA (2)
• Aquatic Commons (5)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
• Archive of European Integration (4)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (1)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (18)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (10)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (8)
• Biblioteca Digital de la Universidad Católica Argentina (1)
• Bibloteca do Senado Federal do Brasil (138)
• Biodiversity Heritage Library, United States (2)
• Blue Tiger Commons - Lincoln University - USA (1)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (33)
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• Bucknell University Digital Commons - Pensilvania - USA (2)
• CentAUR: Central Archive University of Reading - UK (31)
• Center for Jewish History Digital Collections (1)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (3)
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• Dalarna University College Electronic Archive (1)
• Digital Archives@Colby (3)
• Digital Commons - Michigan Tech (1)
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• Digital Commons @ DU | University of Denver Research (2)
• Digital Peer Publishing (1)
• Digital Repository at Iowa State University (2)
• DigitalCommons@University of Nebraska - Lincoln (34)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (153)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (3)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (3)
• Greenwich Academic Literature Archive - UK (2)
• Helda - Digital Repository of University of Helsinki (2)
• Indian Institute of Science - Bangalore - Índia (8)
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• Memoria Académica - FaHCE, UNLP - Argentina (6)
• Ministerio de Cultura, Spain (4)
• National Center for Biotechnology Information - NCBI (11)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (3)
• Publishing Network for Geoscientific & Environmental Data (67)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (17)
• Queensland University of Technology - ePrints Archive (39)
• Repositório digital da Fundação Getúlio Vargas - FGV (2)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (37)
• 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 (2)
• South Carolina State Documents Depository (2)
• Universidad de Alicante (1)
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