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• Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Aquatic Commons (6)
• Archive of European Integration (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. (5)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (1)
• Biblioteca Digital de la Universidad Católica Argentina (1)
• Biodiversity Heritage Library, United States (27)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (44)
• Boston University Digital Common (2)
• Brock University, Canada (64)
• Bucknell University Digital Commons - Pensilvania - USA (1)
• CentAUR: Central Archive University of Reading - UK (3)
• Center for Jewish History Digital Collections (65)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (4)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (11)
• Cornell: DigitalCommons@ILR (2)
• CUNY Academic Works (42)
• Dalarna University College Electronic Archive (1)
• Digital Commons - Michigan Tech (1)
• Digital Commons @ DU | University of Denver Research (1)
• DigitalCommons@The Texas Medical Center (1)
• DigitalCommons@University of Nebraska - Lincoln (2)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (9)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (12)
• Harvard University (62)
• Memoria Académica - FaHCE, UNLP - Argentina (23)
• Ministerio de Cultura, Spain (2)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (1)
• Portal de Revistas Científicas Complutenses - Espanha (3)
• Publishing Network for Geoscientific & Environmental Data (11)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (3)
• Queensland University of Technology - ePrints Archive (7)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (4)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (2)
• Savoirs UdeS : plateforme de diffusion de la production intellectuelle de l’Université de Sherbrooke - Canada (1)
• School of Medicine, Washington University, United States (27)
• Universidad Autónoma de Nuevo León, Mexico (1)
• Universidad de Alicante (1)
• Universidad del Rosario, Colombia (4)
• Universidad Politécnica de Madrid (2)
• Universidade Federal do Rio Grande do Norte (UFRN) (1)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (1)
• Université de Lausanne, Switzerland (1)
• Université de Montréal, Canada (1)
• University of Connecticut - USA (1)
• University of Michigan (473)
• USA Library of Congress (32)