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• Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (2)
• Aquatic Commons (19)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (9)
• Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (3)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (1)
• Boston University Digital Common (1)
• Cambridge University Engineering Department Publications Database (40)
• Center for Jewish History Digital Collections (2)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (379)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (10)
• Harvard University (40)
• Helda - Digital Repository of University of Helsinki (33)
• Indian Institute of Science - Bangalore - Índia (48)
• Publishing Network for Geoscientific & Environmental Data (4)
• Queensland University of Technology - ePrints Archive (396)
• Repositório Científico do Instituto Politécnico de Lisboa - Portugal (1)
• Repositorio Institucional de la Universidad Nacional Agraria (1)
• Universidad de Alicante (1)
• Universidad del Rosario, Colombia (2)
• University of Michigan (1)
• USA Library of Congress (2)