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• Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
• Adam Mickiewicz University Repository (1)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (2)
• Applied Math and Science Education Repository - Washington - USA (1)
• Aquatic Commons (31)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (4)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (7)
• Boston University Digital Common (3)
• Brock University, Canada (18)
• Bucknell University Digital Commons - Pensilvania - USA (4)
• Cambridge University Engineering Department Publications Database (1)
• CentAUR: Central Archive University of Reading - UK (18)
• Center for Jewish History Digital Collections (28)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (5)
• CUNY Academic Works (1)
• Dalarna University College Electronic Archive (3)
• Digital Howard @ Howard University | Howard University Research (3)
• DigitalCommons@The Texas Medical Center (4)
• DigitalCommons@University of Nebraska - Lincoln (4)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (1)
• DRUM (Digital Repository at the University of Maryland) (1)
• Duke University (2)
• Harvard University (93)
• Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (1)
• Massachusetts Institute of Technology (1)
• Memoria Académica - FaHCE, UNLP - Argentina (9)
• Ministerio de Cultura, Spain (1)
• National Center for Biotechnology Information - NCBI (1)
• Portal de Revistas Científicas Complutenses - Espanha (14)
• Publishing Network for Geoscientific & Environmental Data (132)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (14)
• Queensland University of Technology - ePrints Archive (29)
• Repositório Aberto da Universidade Aberta de Portugal (1)
• Repositorio Institucional de la Universidad Nacional Agraria (2)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (3)
• The Scholarly Commons | School of Hotel Administration; Cornell University Research (1)
• Universidad del Rosario, Colombia (89)
• Universidade Federal do Pará (1)
• Universidade Metodista de São Paulo (8)
• Université de Montréal, Canada (1)
• University of Michigan (336)
• University of Queensland eSpace - Australia (1)
• USA Library of Congress (109)
• WestminsterResearch - UK (1)