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• Abertay Research Collections - Abertay University’s repository (1)
• Aberystwyth University Repository - Reino Unido (1)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (3)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Aquatic Commons (6)
• Archive of European Integration (10)
• 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 | Sistema Integrado de Documentación | UNCuyo - UNCUYO. UNIVERSIDAD NACIONAL DE CUYO. (2)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (7)
• Biblioteca Digital de la Universidad Católica Argentina (1)
• Biodiversity Heritage Library, United States (11)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (51)
• Boston University Digital Common (3)
• Brock University, Canada (59)
• Cambridge University Engineering Department Publications Database (2)
• CentAUR: Central Archive University of Reading - UK (12)
• Center for Jewish History Digital Collections (52)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (3)
• Cornell: DigitalCommons@ILR (2)
• CUNY Academic Works (42)
• Dalarna University College Electronic Archive (1)
• Digital Commons - Michigan Tech (2)
• Digital Commons @ DU | University of Denver Research (1)
• Digital Commons at Florida International University (1)
• Digital Peer Publishing (2)
• DigitalCommons@The Texas Medical Center (4)
• DigitalCommons@University of Nebraska - Lincoln (2)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (2)
• Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (1)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (11)
• Greenwich Academic Literature Archive - UK (1)
• Harvard University (67)
• Helda - Digital Repository of University of Helsinki (1)
• Institute of Public Health in Ireland, Ireland (1)
• Instituto Politécnico do Porto, Portugal (1)
• Memoria Académica - FaHCE, UNLP - Argentina (12)
• Ministerio de Cultura, Spain (1)
• National Center for Biotechnology Information - NCBI (1)
• Nottingham eTheses (1)
• Portal de Revistas Científicas Complutenses - Espanha (3)
• Publishing Network for Geoscientific & Environmental Data (8)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (20)
• Queensland University of Technology - ePrints Archive (51)
• ReCiL - Repositório Científico Lusófona - Grupo Lusófona, Portugal (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (8)
• School of Medicine, Washington University, United States (39)
• South Carolina State Documents Depository (3)
• Universidad Autónoma de Nuevo León, Mexico (3)
• Universidad de Alicante (1)
• Universidad del Rosario, Colombia (6)
• Universidad Politécnica de Madrid (1)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (1)
• Université de Lausanne, Switzerland (1)
• Université de Montréal, Canada (2)
• University of Connecticut - USA (4)
• University of Michigan (385)
• University of Queensland eSpace - Australia (10)
• University of Washington (1)
• USA Library of Congress (20)