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• Aberystwyth University Repository - Reino Unido (1)
• Academic Research Repository at Institute of Developing Economies (1)
• Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (1)
• Applied Math and Science Education Repository - Washington - USA (3)
• Aquatic Commons (7)
• ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
• Archive of European Integration (44)
• Aston University Research Archive (6)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biblioteca de Teses e Dissertações da USP (1)
• Biblioteca Digital da Câmara dos Deputados (1)
• Biodiversity Heritage Library, United States (32)
• Blue Tiger Commons - Lincoln University - USA (1)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (47)
• Boston University Digital Common (6)
• Brock University, Canada (85)
• Bucknell University Digital Commons - Pensilvania - USA (2)
• CaltechTHESIS (4)
• CentAUR: Central Archive University of Reading - UK (24)
• Center for Jewish History Digital Collections (16)
• Chapman University Digital Commons - CA - USA (22)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (1)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (11)
• CORA - Cork Open Research Archive - University College Cork - Ireland (4)
• CUNY Academic Works (2)
• Digital Archives@Colby (8)
• Digital Commons - Montana Tech (6)
• Digital Commons @ DU | University of Denver Research (2)
• Digital Commons @ Winthrop University (3)
• Digital Commons at Florida International University (8)
• Digital Peer Publishing (2)
• Digital Repository at Iowa State University (1)
• DigitalCommons@The Texas Medical Center (2)
• DigitalCommons@University of Nebraska - Lincoln (3)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (2)
• DRUM (Digital Repository at the University of Maryland) (3)
• Ecology and Society (2)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (1)
• Greenwich Academic Literature Archive - UK (1)
• Harvard University (9)
• Helda - Digital Repository of University of Helsinki (4)
• Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (1)
• Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (1)
• Portal de Revistas Científicas Complutenses - Espanha (2)
• Publishing Network for Geoscientific & Environmental Data (53)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (30)
• Queensland University of Technology - ePrints Archive (52)
• Repositório Alice (Acesso Livre à Informação Científica da Embrapa / Repository Open Access to Scientific Information from Embrapa) (1)
• Repositório Científico do Instituto Politécnico de Lisboa - Portugal (1)
• Repositório digital da Fundação Getúlio Vargas - FGV (2)
• Repositório Institucional da Universidade de Aveiro - Portugal (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (1)
• School of Medicine, Washington University, United States (18)
• South Carolina State Documents Depository (3)
• Universidad Autónoma de Nuevo León, Mexico (1)
• Universidad del Rosario, Colombia (16)
• Universidade de Lisboa - Repositório Aberto (1)
• Universidade Federal do Rio Grande do Norte (UFRN) (1)
• Universidade Metodista de São Paulo (4)
• Université de Montréal, Canada (1)
• University of Michigan (357)
• University of Washington (4)
• WestminsterResearch - UK (4)