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• Aberdeen University (1)
• Aberystwyth University Repository - Reino Unido (2)
• Academic Archive On-line (Stockholm University; Sweden) (1)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (1)
• Aquatic Commons (56)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (2)
• Archive of European Integration (14)
• Aston University Research Archive (1)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (2)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (4)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (6)
• Biodiversity Heritage Library, United States (6)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (49)
• Brock University, Canada (6)
• Bucknell University Digital Commons - Pensilvania - USA (2)
• CaltechTHESIS (46)
• Cambridge University Engineering Department Publications Database (7)
• CentAUR: Central Archive University of Reading - UK (48)
• Central European University - Research Support Scheme (1)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (11)
• Cochin University of Science & Technology (CUSAT), India (26)
• Collection Of Biostatistics Research Archive (2)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (18)
• Dalarna University College Electronic Archive (3)
• Digital Commons - Montana Tech (27)
• Digital Commons at Florida International University (2)
• DigitalCommons - The University of Maine Research (2)
• DigitalCommons@The Texas Medical Center (7)
• DigitalCommons@University of Nebraska - Lincoln (3)
• Duke University (3)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (2)
• Greenwich Academic Literature Archive - UK (1)
• Harvard University (3)
• Helda - Digital Repository of University of Helsinki (21)
• Indian Institute of Science - Bangalore - Índia (10)
• National Center for Biotechnology Information - NCBI (7)
• Portal de Revistas Científicas Complutenses - Espanha (4)
• Publishing Network for Geoscientific & Environmental Data (44)
• QSpace: Queen's University - Canada (1)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (25)
• Queensland University of Technology - ePrints Archive (84)
• Repositório Institucional da Universidade de Aveiro - Portugal (2)
• Repositório Institucional da Universidade Federal do Rio Grande do Norte (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (16)
• SAPIENTIA - Universidade do Algarve - Portugal (1)
• School of Medicine, Washington University, United States (4)
• South Carolina State Documents Depository (9)
• Universidad Autónoma de Nuevo León, Mexico (4)
• Universidad del Rosario, Colombia (3)
• Universidad Politécnica de Madrid (2)
• Universidade Federal do Pará (2)
• Universidade Federal do Rio Grande do Norte (UFRN) (2)
• Universitat de Girona, Spain (1)
• Université de Lausanne, Switzerland (2)
• Université de Montréal, Canada (16)
• University of Michigan (335)
• University of Queensland eSpace - Australia (3)
• University of Southampton, United Kingdom (1)
• Worcester Research and Publications - Worcester Research and Publications - UK (1)