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• Repository Napier (1)
• Academic Archive On-line (Stockholm University; Sweden) (1)
• Academic Research Repository at Institute of Developing Economies (1)
• Adam Mickiewicz University Repository (1)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (1)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Aquatic Commons (5)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (2)
• Aston University Research Archive (1)
• Biblioteca Digital | Sistema Integrado de Documentación | UNCuyo - UNCUYO. UNIVERSIDAD NACIONAL DE CUYO. (3)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (2)
• Biblioteca Digital de la Universidad Católica Argentina (4)
• Biblioteca Digital Loyola - Universidad de Deusto (1)
• Biblioteca Valenciana Digital - Ministerio de Educación, Cultura y Deporte - Valencia - Espanha (1)
• Biodiversity Heritage Library, United States (3)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (13)
• Boston University Digital Common (3)
• Brock University, Canada (83)
• Bucknell University Digital Commons - Pensilvania - USA (2)
• Cambridge University Engineering Department Publications Database (3)
• CentAUR: Central Archive University of Reading - UK (14)
• Center for Jewish History Digital Collections (14)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (7)
• Cochin University of Science & Technology (CUSAT), India (1)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (4)
• Digital Archives@Colby (3)
• Digital Commons - Michigan Tech (2)
• Digital Commons - Montana Tech (4)
• Digital Commons @ DU | University of Denver Research (3)
• Digital Commons @ Winthrop University (3)
• Digital Commons at Florida International University (3)
• Digital Peer Publishing (1)
• DigitalCommons@University of Nebraska - Lincoln (3)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (2)
• DRUM (Digital Repository at the University of Maryland) (3)
• Duke University (3)
• Glasgow Theses Service (1)
• Greenwich Academic Literature Archive - UK (2)
• Harvard University (82)
• Helda - Digital Repository of University of Helsinki (7)
• Memoria Académica - FaHCE, UNLP - Argentina (14)
• Ministerio de Cultura, Spain (1)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (3)
• Portal de Revistas Científicas Complutenses - Espanha (5)
• Publishing Network for Geoscientific & Environmental Data (61)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (20)
• Queensland University of Technology - ePrints Archive (21)
• RCAAP - Repositório Científico de Acesso Aberto de Portugal (1)
• Repositório Científico do Instituto Politécnico de Lisboa - Portugal (1)
• Repositório digital da Fundação Getúlio Vargas - FGV (2)
• Repositório Digital da UNIVERSIDADE DA MADEIRA - Portugal (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (7)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
• South Carolina State Documents Depository (1)
• Universidad Autónoma de Nuevo León, Mexico (3)
• Universidad de Alicante (3)
• Universidad del Rosario, Colombia (3)
• Universidad Politécnica de Madrid (2)
• Universidade Complutense de Madrid (1)
• Universidade Federal do Pará (1)
• Universitat de Girona, Spain (1)
• Université de Lausanne, Switzerland (1)
• Université de Montréal, Canada (6)
• University of Michigan (486)
• University of Queensland eSpace - Australia (3)
• USA Library of Congress (7)
• WestminsterResearch - UK (3)