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• Aberdeen University (1)
• Applied Math and Science Education Repository - Washington - USA (7)
• Aston University Research Archive (1)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (2)
• Biblioteca Virtual del Sistema Sanitario Público de Andalucía (BV-SSPA), Junta de Andalucía. Consejería de Salud y Bienestar Social, Spain (14)
• Biodiversity Heritage Library, United States (73)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (5)
• Brock University, Canada (31)
• CentAUR: Central Archive University of Reading - UK (14)
• Consorci de Serveis Universitaris de Catalunya (CSUC), Spain (1)
• Digital Commons @ Winthrop University (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (8)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (1)
• Harvard University (44)
• Memoria Académica - FaHCE, UNLP - Argentina (3)
• Publishing Network for Geoscientific & Environmental Data (17)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (1)
• Repositório da Produção Científica e Intelectual da Unicamp (4)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (2)
• School of Medicine, Washington University, United States (4)
• Scottish Institute for Research in Economics (SIRE) (SIRE), United Kingdom (2)
• Universidad del Rosario, Colombia (19)
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• Universidade Federal do Pará (1)
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