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• Aberdeen University (2)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (3)
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• Applied Math and Science Education Repository - Washington - USA (7)
• Aquatic Commons (2)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (17)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (2)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (1)
• Biodiversity Heritage Library, United States (1)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (12)
• Boston University Digital Common (1)
• Brock University, Canada (3)
• Bucknell University Digital Commons - Pensilvania - USA (2)
• CentAUR: Central Archive University of Reading - UK (10)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (22)
• CORA - Cork Open Research Archive - University College Cork - Ireland (1)
• Dalarna University College Electronic Archive (1)
• Digital Commons - Michigan Tech (2)
• Digital Commons - Montana Tech (2)
• Digital Commons @ DU | University of Denver Research (2)
• Digital Commons at Florida International University (24)
• Digital Repository at Iowa State University (3)
• DigitalCommons@The Texas Medical Center (1)
• DigitalCommons@University of Nebraska - Lincoln (29)
• DRUM (Digital Repository at the University of Maryland) (1)
• Duke University (1)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (2)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (1)
• Harvard University (1)
• Helda - Digital Repository of University of Helsinki (6)
• Illinois Digital Environment for Access to Learning and Scholarship Repository (2)
• Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (1)
• Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (1)
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• National Center for Biotechnology Information - NCBI (4)
• Portal de Revistas Científicas Complutenses - Espanha (1)
• Publishing Network for Geoscientific & Environmental Data (8)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (15)
• Queensland University of Technology - ePrints Archive (3)
• Repositório Científico da Universidade de Évora - Portugal (5)
• Repositório Institucional da Universidade de Brasília (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (3)
• Savoirs UdeS : plateforme de diffusion de la production intellectuelle de l’Université de Sherbrooke - Canada (1)
• School of Medicine, Washington University, United States (18)
• South Carolina State Documents Depository (10)
• Universidad del Rosario, Colombia (1)
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• Université de Montréal, Canada (6)
• University of Michigan (81)
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