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• Academic Archive On-line (Stockholm University; Sweden) (1)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (1)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Aquatic Commons (2)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
• Archimer: Archive de l'Institut francais de recherche pour l'exploitation de la mer (1)
• Biblioteca Digital | Sistema Integrado de Documentación | UNCuyo - UNCUYO. UNIVERSIDAD NACIONAL DE CUYO. (2)
• Biblioteca Digital de la Universidad Católica Argentina (4)
• Biodiversity Heritage Library, United States (5)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (5)
• Boston University Digital Common (7)
• Brock University, Canada (70)
• Bucknell University Digital Commons - Pensilvania - USA (2)
• Cambridge University Engineering Department Publications Database (2)
• CentAUR: Central Archive University of Reading - UK (6)
• Center for Jewish History Digital Collections (1)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (6)
• Cochin University of Science & Technology (CUSAT), India (1)
• Digital Commons @ DU | University of Denver Research (2)
• Digital Commons @ Winthrop University (3)
• Digital Commons at Florida International University (2)
• DigitalCommons@The Texas Medical Center (1)
• DigitalCommons@University of Nebraska - Lincoln (3)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (1)
• Glasgow Theses Service (1)
• Harvard University (13)
• Helda - Digital Repository of University of Helsinki (3)
• Memoria Académica - FaHCE, UNLP - Argentina (7)
• National Center for Biotechnology Information - NCBI (1)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (8)
• Portal de Revistas Científicas Complutenses - Espanha (2)
• Publishing Network for Geoscientific & Environmental Data (305)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (13)
• Queensland University of Technology - ePrints Archive (2)
• Repositório Científico do Instituto Politécnico de Lisboa - Portugal (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (10)
• 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 (1)
• Universidad de Alicante (2)
• Universidad del Rosario, Colombia (2)
• Universidad Politécnica de Madrid (1)
• Universidade Federal do Pará (2)
• Université de Montréal, Canada (3)
• University of Michigan (468)
• University of Queensland eSpace - Australia (2)
• University of Washington (1)
• USA Library of Congress (5)
• WestminsterResearch - UK (1)