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• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (2)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Aquatic Commons (27)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (10)
• Aston University Research Archive (2)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biblioteca Digital da Câmara dos Deputados (59)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (2)
• Biblioteca Digital de la Universidad Católica Argentina (15)
• Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (1)
• Biblioteca Digital Loyola - Universidad de Deusto (1)
• Biblioteca Valenciana Digital - Ministerio de Educación, Cultura y Deporte - Valencia - Espanha (3)
• Biodiversity Heritage Library, United States (5)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (2)
• Brock University, Canada (15)
• Cambridge University Engineering Department Publications Database (18)
• CentAUR: Central Archive University of Reading - UK (6)
• Center for Jewish History Digital Collections (18)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (9)
• Cochin University of Science & Technology (CUSAT), India (1)
• CORA - Cork Open Research Archive - University College Cork - Ireland (1)
• Cornell: DigitalCommons@ILR (3)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (4)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (11)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (27)
• Harvard University (10)
• Helda - Digital Repository of University of Helsinki (32)
• Indian Institute of Science - Bangalore - Índia (179)
• Memoria Académica - FaHCE, UNLP - Argentina (3)
• National Center for Biotechnology Information - NCBI (6)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (1)
• Publishing Network for Geoscientific & Environmental Data (31)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (6)
• Queensland University of Technology - ePrints Archive (208)
• Repositorio Institucional de la Universidad Nacional Agraria (6)
• South Carolina State Documents Depository (1)
• Universidad Autónoma de Nuevo León, Mexico (1)
• Universidad del Rosario, Colombia (2)
• Universidade Federal do Rio Grande do Norte (UFRN) (1)
• Universidade Metodista de São Paulo (1)
• Universitat de Girona, Spain (1)
• Université de Montréal, Canada (1)
• University of Michigan (224)
• WestminsterResearch - UK (3)