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• Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
• Applied Math and Science Education Repository - Washington - USA (7)
• Aquatic Commons (15)
• Archive of European Integration (5)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (1)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (5)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (3)
• Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (1)
• Biodiversity Heritage Library, United States (3)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (11)
• Boston University Digital Common (2)
• Brock University, Canada (3)
• CaltechTHESIS (1)
• CentAUR: Central Archive University of Reading - UK (6)
• Center for Jewish History Digital Collections (3)
• Central European University - Research Support Scheme (1)
• Chapman University Digital Commons - CA - USA (1)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (1)
• Coffee Science - Universidade Federal de Lavras (1)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (1)
• CORA - Cork Open Research Archive - University College Cork - Ireland (1)
• Digital Commons @ Winthrop University (1)
• DigitalCommons@The Texas Medical Center (3)
• DigitalCommons@University of Nebraska - Lincoln (2)
• Duke University (4)
• Harvard University (15)
• Helda - Digital Repository of University of Helsinki (4)
• Indian Institute of Science - Bangalore - Índia (3)
• Publishing Network for Geoscientific & Environmental Data (614)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (11)
• Queensland University of Technology - ePrints Archive (7)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (19)
• SAPIENTIA - Universidade do Algarve - Portugal (1)
• South Carolina State Documents Depository (4)
• Universidad del Rosario, Colombia (6)
• Universidad Politécnica de Madrid (1)
• Université de Montréal, Canada (3)
• University of Connecticut - USA (1)
• University of Michigan (209)
• University of Washington (1)
• USA Library of Congress (5)