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• AMS Tesi di Dottorato - Alm@DL - Università di Bologna (2)
• AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
• Aquatic Commons (13)
• Archive of European Integration (9)
• Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (1)
• Biblioteca Digital | Sistema Integrado de Documentación | UNCuyo - UNCUYO. UNIVERSIDAD NACIONAL DE CUYO. (2)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (10)
• Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (4)
• Biblioteca Digital de la Universidad Católica Argentina (1)
• Biodiversity Heritage Library, United States (12)
• Blue Tiger Commons - Lincoln University - USA (1)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (32)
• Boston University Digital Common (3)
• Brock University, Canada (54)
• Bucknell University Digital Commons - Pensilvania - USA (1)
• Cambridge University Engineering Department Publications Database (1)
• CentAUR: Central Archive University of Reading - UK (9)
• Center for Jewish History Digital Collections (33)
• Comissão Econômica para a América Latina e o Caribe (CEPAL) (4)
• Cornell: DigitalCommons@ILR (2)
• CUNY Academic Works (9)
• Dalarna University College Electronic Archive (1)
• Deakin Research Online - Australia (27)
• Digital Commons - Michigan Tech (2)
• Digital Commons @ DU | University of Denver Research (1)
• Digital Commons at Florida International University (1)
• Digital Peer Publishing (1)
• DigitalCommons@The Texas Medical Center (2)
• DigitalCommons@University of Nebraska - Lincoln (1)
• Digitale Sammlungen - Goethe-Universität Frankfurt am Main (5)
• Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (1)
• Greenwich Academic Literature Archive - UK (1)
• Harvard University (52)
• Helda - Digital Repository of University of Helsinki (3)
• Memoria Académica - FaHCE, UNLP - Argentina (12)
• Ministerio de Cultura, Spain (1)
• National Center for Biotechnology Information - NCBI (1)
• Portal de Revistas Científicas Complutenses - Espanha (2)
• Publishing Network for Geoscientific & Environmental Data (72)
• QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (12)
• Queensland University of Technology - ePrints Archive (15)
• Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (6)
• Research Open Access Repository of the University of East London. (1)
• RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
• School of Medicine, Washington University, United States (19)
• Universidad Autónoma de Nuevo León, Mexico (2)
• Universidad del Rosario, Colombia (4)
• Universidad Politécnica de Madrid (4)
• Universidade de Lisboa - Repositório Aberto (1)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (1)
• Université de Lausanne, Switzerland (1)
• Université de Montréal (1)
• Université de Montréal, Canada (2)
• Université Laval Mémoires et thèses électroniques (1)
• University of Connecticut - USA (3)
• University of Michigan (453)
• University of Queensland eSpace - Australia (3)
• USA Library of Congress (64)