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• Adam Mickiewicz University Repository (1)
• Applied Math and Science Education Repository - Washington - USA (8)
• Aquatic Commons (49)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
• Archive of European Integration (3)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (2)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (5)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (10)
• Biodiversity Heritage Library, United States (54)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (7)
• Boston University Digital Common (1)
• Brock University, Canada (1)
• Bucknell University Digital Commons - Pensilvania - USA (2)
• CentAUR: Central Archive University of Reading - UK (4)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (11)
• Cochin University of Science & Technology (CUSAT), India (1)
• Deakin Research Online - Australia (8)
• Digital Commons - Michigan Tech (5)
• Digital Commons @ DU | University of Denver Research (5)
• DigitalCommons@The Texas Medical Center (7)
• DigitalCommons@University of Nebraska - Lincoln (2)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (1)
• 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 (4)
• Greenwich Academic Literature Archive - UK (1)
• Helda - Digital Repository of University of Helsinki (3)
• Illinois Digital Environment for Access to Learning and Scholarship Repository (1)
• Indian Institute of Science - Bangalore - Índia (3)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (1)
• Portal de Revistas Científicas Complutenses - Espanha (2)
• Publishing Network for Geoscientific & Environmental Data (47)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (4)
• Queensland University of Technology - ePrints Archive (8)
• Repositório Científico da Universidade de Évora - Portugal (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (7)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
• School of Medicine, Washington University, United States (1)
• South Carolina State Documents Depository (2)
• Universidad del Rosario, Colombia (3)
• Universidad Politécnica de Madrid (12)
• Université de Lausanne, Switzerland (1)
• Université de Montréal, Canada (2)
• University of Connecticut - USA (1)
• University of Michigan (695)
• University of Queensland eSpace - Australia (1)
• University of Washington (2)
• USA Library of Congress (1)