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• Aberdeen University (4)
• Aberystwyth University Repository - Reino Unido (2)
• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (2)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Applied Math and Science Education Repository - Washington - USA (1)
• Aquatic Commons (3)
• Archive of European Integration (8)
• Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (4)
• Aston University Research Archive (9)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (16)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (21)
• Biodiversity Heritage Library, United States (2)
• Bioline International (1)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (57)
• Boston University Digital Common (5)
• Brock University, Canada (3)
• Bulgarian Digital Mathematics Library at IMI-BAS (7)
• Cambridge University Engineering Department Publications Database (41)
• CamPuce - an association for the promotion of science and humanities in African Countries (1)
• CentAUR: Central Archive University of Reading - UK (30)
• Center for Jewish History Digital Collections (1)
• Chinese Academy of Sciences Institutional Repositories Grid Portal (11)
• Cochin University of Science & Technology (CUSAT), India (4)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (2)
• CORA - Cork Open Research Archive - University College Cork - Ireland (1)
• Dalarna University College Electronic Archive (1)
• Digital Archives@Colby (1)
• Digital Commons - Michigan Tech (1)
• Digital Commons - Montana Tech (1)
• Digital Commons @ DU | University of Denver Research (1)
• Digital Commons @ Winthrop University (1)
• Digital Commons at Florida International University (16)
• Digital Peer Publishing (2)
• DigitalCommons@The Texas Medical Center (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (3)
• DRUM (Digital Repository at the University of Maryland) (2)
• Duke University (1)
• Ecology and Society (1)
• eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (4)
• eScholarship Repository - University of California (3)
• Greenwich Academic Literature Archive - UK (1)
• Harvard University (3)
• Helda - Digital Repository of University of Helsinki (5)
• Indian Institute of Science - Bangalore - Índia (43)
• Instituto Politécnico de Santarém (1)
• Instituto Politécnico do Porto, Portugal (1)
• Massachusetts Institute of Technology (1)
• Ministerio de Cultura, Spain (4)
• National Center for Biotechnology Information - NCBI (13)
• Plymouth Marine Science Electronic Archive (PlyMSEA) (3)
• Portal de Revistas Científicas Complutenses - Espanha (1)
• Publishing Network for Geoscientific & Environmental Data (59)
• QSpace: Queen's University - Canada (2)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (28)
• Queensland University of Technology - ePrints Archive (106)
• RDBU - Repositório Digital da Biblioteca da Unisinos (2)
• Repositório Aberto da Universidade Aberta de Portugal (1)
• Repositório Científico da Universidade de Évora - Portugal (1)
• Repositorio Institucional da UFLA (RIUFLA) (1)
• Repositório Institucional da Universidade Federal do Rio Grande do Norte (1)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (40)
• Repositorio Institucional Universidad de Medellín (1)
• School of Medicine, Washington University, United States (2)
• SerWisS - Server für Wissenschaftliche Schriften der Fachhochschule Hannover (3)
• Universidad Autónoma de Nuevo León, Mexico (1)
• Universidad de Alicante (9)
• Universidad Politécnica de Madrid (15)
• Universidade Complutense de Madrid (3)
• Universidade Federal do Rio Grande do Norte (UFRN) (7)
• Universitat de Girona, Spain (4)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (1)
• Université de Montréal, Canada (1)
• University of Canberra Research Repository - Australia (2)
• University of Connecticut - USA (1)
• University of Michigan (244)
• University of Queensland eSpace - Australia (16)
• University of Southampton, United Kingdom (3)
• University of Washington (1)
• USA Library of Congress (3)
• WestminsterResearch - UK (1)