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• Academic Archive On-line (Stockholm University; Sweden) (1)
• Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
• Archive of European Integration (1)
• Aston University Research Archive (1)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biblioteca Digital | Sistema Integrado de Documentación | UNCuyo - UNCUYO. UNIVERSIDAD NACIONAL DE CUYO. (2)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (1)
• Biodiversity Heritage Library, United States (42)
• Blue Tiger Commons - Lincoln University - USA (1)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (2)
• Brock University, Canada (97)
• Bucknell University Digital Commons - Pensilvania - USA (1)
• CentAUR: Central Archive University of Reading - UK (2)
• CiencIPCA - Instituto Politécnico do Cávado e do Ave, Portugal (1)
• Consorci de Serveis Universitaris de Catalunya (CSUC), Spain (7)
• Digital Archives@Colby (1)
• Digital Commons - Michigan Tech (1)
• Digital Commons @ DU | University of Denver Research (5)
• Digital Commons at Florida International University (1)
• DigitalCommons@University of Nebraska - Lincoln (3)
• Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (22)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (54)
• Harvard University (24)
• Instituto Politécnico do Porto, Portugal (1)
• Martin Luther Universitat Halle Wittenberg, Germany (1)
• Portal de Revistas Científicas Complutenses - Espanha (1)
• Publishing Network for Geoscientific & Environmental Data (59)
• ReCiL - Repositório Científico Lusófona - Grupo Lusófona, Portugal (1)
• Repositório Científico do Instituto Politécnico de Lisboa - Portugal (2)
• REPOSITORIO DIGITAL IMARPE - INSTITUTO DEL MAR DEL PERÚ, Peru (3)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (5)
• School of Medicine, Washington University, United States (20)
• Scielo Saúde Pública - SP (8)
• Universidad Autónoma de Nuevo León, Mexico (2)
• Universidad Politécnica de Madrid (8)
• Universidade do Minho (1)
• Universidade Federal do Pará (18)
• Universidade Federal do Rio Grande do Norte (UFRN) (1)
• Universidade Técnica de Lisboa (1)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (1)
• Université de Lausanne, Switzerland (28)
• Université de Montréal (1)
• Université de Montréal, Canada (7)
• Université Laval Mémoires et thèses électroniques (1)
• University of Michigan (517)
• University of Queensland eSpace - Australia (7)
• University of Southampton, United Kingdom (1)
• University of Washington (1)
• USA Library of Congress (25)