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• Aberdeen University (4)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (2)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (4)
• Andina Digital - Repositorio UASB-Digital - Universidade Andina Simón Bolívar (1)
• Applied Math and Science Education Repository - Washington - USA (17)
• Aquatic Commons (128)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (2)
• Aston University Research Archive (1)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (13)
• Biblioteca de Teses e Dissertações da USP (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (3)
• Biodiversity Heritage Library, United States (13)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (9)
• Boston University Digital Common (3)
• Brock University, Canada (13)
• CaltechTHESIS (2)
• Cambridge University Engineering Department Publications Database (24)
• CentAUR: Central Archive University of Reading - UK (8)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (3)
• Coffee Science - Universidade Federal de Lavras (2)
• DI-fusion - The institutional repository of Université Libre de Bruxelles (1)
• Digital Commons - Michigan Tech (1)
• Digital Commons - Montana Tech (2)
• Digital Commons @ DU | University of Denver Research (3)
• DigitalCommons@The Texas Medical Center (1)
• DigitalCommons@University of Nebraska - Lincoln (5)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (5)
• Duke University (3)
• Ecology and Society (2)
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• Indian Institute of Science - Bangalore - Índia (2)
• Memorial University Research Repository (2)
• Ministerio de Cultura, Spain (1)
• National Center for Biotechnology Information - NCBI (1)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (2)
• Portal de Revistas Científicas Complutenses - Espanha (5)
• Publishing Network for Geoscientific & Environmental Data (299)
• QSpace: Queen's University - Canada (3)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (37)
• Queensland University of Technology - ePrints Archive (43)
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• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (3)
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• Royal College of Art Research Repository - Uninet Kingdom (1)
• The Scholarly Commons | School of Hotel Administration; Cornell University Research (1)
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• Universidad Politécnica de Madrid (5)
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