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ACM Digital Library Association for Computing Machinery
Acta Sanctorum ProQuest (Chadwyck-Healey)
AgEcon Search: Research in Agricultural and Applied Economics University of Minnesota
AGRIS: International Information System for the Agriculture Sciences and Technology United Nations, Food and Agriculture Organization
AIP Journals American Institute of Physics
American Economic Association Journals American Economic Association
American Medical Association Journals American Medical Association
AMS Current Journals American Mathematical Society
Annual Reviews Annual Reviews
ARAN (National University of Ireland Galway) ARAN (National University of Ireland Galway)
Arxiv Cornell University
Bergen Open Research Archive (University of Bergen) Bergen Open Research Archive (University of Bergen)
Bioline International Bioline International
BioMed Central BioMed Central Ltd.
BioOne BioOne
BioScientifica Journals BioScientifica Ltd.
Bloomsbury Qatar Foundation Journals Bloomsbury Qatar Foundation Journals
BMJ Journals BMJ Publishing Group
BRAGE (BIBSYS) BRAGE (BIBSYS)
Brepols Periodica Online Brepols
Brill Online Journals + Books Brill
Britannica Online Academic Edition Encyclopædia Britannica, Inc.
British Periodicals - British Periodicals Collection I, II, III ProQuest
Cambridge Books Online Cambridge University Press
Cambridge Journals Cambridge University Press
CASPUR-CIBER Publishing CASPUR-CIBER Publishing
Central and Eastern European Online Library (C.E.E.O.L.) Journals Central and Eastern European Online Library (C.E.E.O.L.)
CERES (Cranfield Collection of E-Research) (Cranfield University) CERES (Cranfield Collection of E-Research) (Cranfield University)
Classical Scores Library: Volume I  + II Alexander Street Press
CNRS Revues.org Centre National de la Recherche Scientifique (CNRS) / (National Center for Scientific Research)
Cochrane Database of Systematic Reviews (CDSR) John Wiley & Sons, Inc.
Constellation (Université du Québec à Chicoutimi) Constellation (Université du Québec à Chicoutimi)
CrossRef CrossRef
DataCite DataCite
David Rumsey Historical Maps Luna Imaging, Inc.
Delpher Boeken Basiscollectie (1781-1800) Koninklijke Bibliotheek, Nationale bibliotheek van Nederland
Dialnet Universidad de La Rioja
Die digitale Landesbibliothek Oberösterreich (Upper Austrian Federal State Library) Die digitale Landesbibliothek Oberösterreich (Upper Austrian Federal State Library)
Digital Access to Scholarship at Harvard (DASH) (Harvard University, Office for Scholarly Communication) Digital Access to Scholarship at Harvard (DASH) (Harvard University, Office for Scholarly Communication)
Digital Commons Bepress
Digital Commons @ SPU (Seattle Pacific University) Digital Commons @ SPU (Seattle Pacific University)
Digital Dissertations (Universitätsbibliothek der LMU Muenchen) Digital Dissertations (Universitätsbibliothek der LMU Muenchen)
Digital Library of the University of Pardubice Digital Library of the University of Pardubice
Digital National Security Archive ProQuest
Digital Repository @ Iowa State University (Iowa State University) Digital Repository @ Iowa State University (Iowa State University)
DigitalCommons@McMaster (McMaster University Library) DigitalCommons@McMaster (McMaster University Library)
Digitale Bibliothek Deutscher Klassiker ProQuest (Chadwyck-Healey)
Digitale Sammlungen (Universitätsbibliothek Paderborn) Digitale Sammlungen (Universitätsbibliothek Paderborn)
Diposit Digital de Documents de la UAB (Universitat Autonoma de Barcelona) Diposit Digital de Documents de la UAB (Universitat Autonoma de Barcelona)
Diposit Digital de la Universitat de Barcelona Diposit Digital de la Universitat de Barcelona
Directory of Open Access Books (DOAB) OAPEN: Open Access Publishing in European Networks
Directory of Open Access Journals (DOAJ) Directory of Open Access Journals (DOAJ)
DiscoverArchive (Vanderbilt University) DiscoverArchive (Vanderbilt University)
DiVA - Academic Archive Online (Uppsala University Library) DiVA - Academic Archive Online (Uppsala University Library)
Dokumentenserver der FU Berlin (Freie Universitat Berlin) Dokumentenserver der FU Berlin (Freie Universitat Berlin)
DSpace@Cambridge (University of Cambridge) DSpace@Cambridge (University of Cambridge)
DTIC Technical Reports Defense Technical Information Center
DUGiDocs (Universitat de Girona) DUGiDocs (Universitat de Girona)
DUGiFonsEspecials (Universitat de Girona) DUGiFonsEspecials (Universitat de Girona)
DUGiMedia (Universitat de Girona) DUGiMedia (Universitat de Girona)
Duke University Press Journals Duke University Press
Duncker & Humblot eJournals Duncker & Humblot GmbH
E. Schweizerbart'sche Verlagsbuchhandlung Publishing Technology (IngentaConnect)
Early English Books Online (EEBO) ProQuest (Chadwyck-Healey)
East View Social Sciences & Humanities Journals East View Information Services
ECLAC Digital Repository (Economic Commission for Latin America and the Caribbean) ECLAC Digital Repository (Economic Commission for Latin America and the Caribbean)
ECONIS German National Library of Economics (Deutsche Zentralbibliothek für Wirtschaftswissenschaften)
EconPapers EconPapers (RePEc)
Edinburgh Research Archive (University of Edinburgh) Edinburgh Research Archive (University of Edinburgh)
Edinburgh University Press Journals Edinburgh University Press
Editoria Italiana Online (EIO) Casalini Libri
eDoc.ViFaPol Hamburg University Press
Education In Video Volume I + II Alexander Street Press
Eighteenth Century Collections Online I + II Gale
Eighteenth Century Journals I Adam Matthew
Eighteenth Century Journals II Adam Matthew
ELEA (Universita Degli Studi di Salerno) ELEA (Universita Degli Studi di Salerno)
Emerald Journals Emerald Group Publishing Limited
Empire Online Adam Matthew
ERIC (Education Resources Information Center) U.S. Department of Education
Érudit Journals Consortium Érudit
eScholarship (University of California, California Digital Library) eScholarship (University of California, California Digital Library)
espace @ Curtin (Curtin University of Technology) espace @ Curtin (Curtin University of Technology)
ETDs Repository (VŠKP - University of Economics, Prague) ETDs Repository (VŠKP - University of Economics, Prague)
EThOS - Electronic Theses Online Service The British Library
EU Bookshop European Union - Publications Office
eWIC Workshops in Computing BCS, The Chartered Institute for IT
Farber Gravestone Collection Luna Imaging, Inc.
FIAF International Index to Film Periodicals Database ProQuest
FIS Bildung Literaturdatenbank Deutsches Institut für Internationale Pädagogische Forschung (DIPF)
Franz Steiner Verlag Publishing Technology (IngentaConnect)
Fraunhofer ePrints (Fraunhofer Gesellschaft) Fraunhofer ePrints (Fraunhofer Gesellschaft)
Gallica Bibliothèque Nationale de France
Ghent University Academic Bibliography (Ghent University) Ghent University Academic Bibliography (Ghent University)
GIGA Journal Family German Institute of Global and Area Studies
Govi-Verlag Publishing Technology (IngentaConnect)
HAL (Hyper Article en Ligne) Centre pour la Communication Scientifique Direct (CCSd)
Hamburg University Press Online-Zeitschriften Hamburg University Press
HathiTrust Digital Library  HathiTrust
HBO Kennisbank HBO Kennisinfrastructuur (HKI) / SURFmarket
Hindawi Books +  Journals Hindawi Publishing Corporation
Hong Kong Institutional Repositories The Hong Kong University Of Science and Technology Library
House of Commons Parliamentary Papers - 19th + 20th Century ProQuest (Chadwyck-Healey)
IADB Repository Inter-American Development Bank
IEEE Open Access IEEE Publishing
IMF eLibrary International Monetary Fund
Inderscience Journals Inderscience Publishers
Informa Healthcare Journals Informa plc
INFORMS Journals  Institute for Operations Research  and the Management Sciences (INFORMS)
Infoscience (École Polytechnique Fédérale de Lausanne (EPFL)) Infoscience (École Polytechnique Fédérale de Lausanne (EPFL))
InfoSci-Journals IGI Global
IOPscience Journals IOP Publishing (Institute of Physics)
Iowa Research Online (University of Iowa Libraries) Iowa Research Online (University of Iowa Libraries)
Japan Society of Applied Physics Journals Japan Society of Applied Physics (JSAP)
Japanese Historical Maps Luna Imaging, Inc.
John Benjamins Publishing Company Publishing Technology (IngentaConnect)
Journal of bone and joint surgery (American volume) Journal of Bone and Joint Surgery (JBJS)
Journals American Society for Microbiology American Society for Microbiology
J-STAGE (Japan Science and Technology Agency) Japan Science and Technology Agency
Karger Books +  Journals S. Karger AG
Kent Academic Repository (University of Kent) Kent Academic Repository (University of Kent)
Klostermann GmbH, Vittorio Publishing Technology (IngentaConnect)
Kluwer Law Online Journals Wolters Kluwer Law & Business
Korea Science Korea Institute of Science & Technology Information (KISTI - 한국과학기술정보연구원)
KoreaMed Synapse KoreaMed
Korean Research Memory (KRM) National Research Foundation of Korea (NRF)
L'Année Philologique Société internationale de bibliographie classique (SIBC)
Le GERFLINT Synergies Groupe d’Etudes et de Recherches pour le Français Langue Internationale (GERFLINT)
Leeds Beckett University Repository (Leeds Beckett University) Leeds Beckett University Repository (Leeds Beckett University)
Leiden University Repository Leiden University Repository
LexisNexis Academic Law Reviews LexisNexis
Library of Congress selected Collections Library of Congress
Linda Hall Digital Library Linda Hall Library
Lippincott Williams & Wilkins - Journals Wolters Kluwer Health, Ovid Technologies
Lirias (KU Leuven Association) Lirias (KU Leuven Association)
Literature Online (LION) ProQuest (Chadwyck-Healey)
Loughborough University Institutional Repository Loughborough University Institutional Repository
LSE Learning Resources Online (London School of Economics and Political Science) LSE Learning Resources Online (London School of Economics and Political Science)
LSE Research Online (London School of Economics and Political Science) LSE Research Online (London School of Economics and Political Science)
LSE Theses Online (London School of Economics and Political Science) LSE Theses Online (London School of Economics and Political Science)
LSHTM Research Online (London School of Hygiene and Tropical Medicine) LSHTM Research Online (London School of Hygiene and Tropical Medicine)
Macmillan Cabinet Papers (1957-1963)  Adam Matthew
MADOC Publikationsserver (Mannheim University Library) MADOC Publikationsserver (Mannheim University Library)
Manchester eScholar (Manchester University) Manchester eScholar (Manchester University)
Mary Ann Liebert Online  Mary Ann Liebert, Inc.
Medknow Journals Medknow Publications and Media Pvt. Ltd.
MEDLINE/PubMed U.S. National Library of Medicine (NLM)
MIT Press Journals MIT Press
MLA International Bibliography Modern Language Association (MLA)
Mohr Siebeck Publishing Technology (IngentaConnect)
Music Online Reference Alexander Street Press
NASA Technical Reports Server (NTRS) NASA Center for AeroSpace Information (CASI)
National Academies Press Free eBooks National Academies Press
National Bureau of Economic Research National Bureau of Economic Research (NBER)
National Chung Hsing University Institutional Repository (National Chung Hsing University, Taiwan) National Chung Hsing University Institutional Repository (National Chung Hsing University, Taiwan)
National Library of New Zealand  National Library of New Zealand Te Puna Mātauranga o Aotearoa
National Library of the Czech Republic Manuscriptorium National Library of the Czech Republic
National Palace English Luna Imaging, Inc.
Nature Publishing Group Nature Publishing Group
New England Journal of Medicine (NEJM) Massachusetts Medical Society
Newfound Press Books Newfound Press
North American Immigrant Letters, Diaries, and Oral Histories Alexander Street Press
North American Indian Drama Alexander Street Press
Norwegian and Nordic index to periodical articles (Norart) National Library of Norway
Norwegian Open Research Archives (NORA) Norwegian Open Research Archives (NORA)
OAPEN Library OAPEN: Open Access Publishing in European Networks
OECD iLibrary OECD
Olms Online Georg Olms Verlag
Open Access LMU (Universitätsbibliothek der LMU Muenchen) Open Access LMU (Universitätsbibliothek der LMU Muenchen)
Open SUNY Textbooks State University of New York (SUNY)
Open Textbook Library UMN Center for Open Education
OpenStax Digital Textbooks OpenStax
Opus: Online Publications Store (University of Bath) Opus: Online Publications Store (University of Bath)
ORBi (Open Repository and Bibliography) (University of Liège) ORBi (Open Repository and Bibliography) (University of Liège)
OUR@oakland (Oakland University) OUR@oakland (Oakland University)
Oxford Art Online- Grove Art Online Oxford University Press
Oxford Journals Oxford University Press
Oxford Medicine Online Oxford University Press
PAIS International ProQuest
Palgrave Connect Palgrave Macmillan
Patrologia Latina Database ProQuest (Chadwyck-Healey)
Periodicals Index Online ProQuest
PLoS Public Library of Science (PLoS)
PMC (PubMed Central) U.S. National Library of Medicine (NLM)
PNAS National Academy of Sciences
PoPuPS: Portail de Publication de Periodiques Scientifiques Réseau des Bibliothèques de l’Université de Liège (University of Liège Libraries)
Portal de Revistas PUCP (Pontificia Universidad Catolica del Peru) Portal de Revistas PUCP (Pontificia Universidad Catolica del Peru)
Project Euclid Project Euclid
Project Gutenberg Project Gutenberg
PsycARTICLES American Psychological Association (APA)
Psychiatry Legacy Collection (- Jg. 2006)  American Psychiatric Association Publishing
PUCRS Institutional Repository (Pontifical Catholic University of Rio Grande do Sul) PUCRS Institutional Repository (Pontifical Catholic University of Rio Grande do Sul)
Purdue University Press Open Access Journals Purdue University Press
RACO (Revistes Catalanes amb Accés Obert) Consorci de Biblioteques Universitàries de Catalunya (CBUC)
RECERCAT (Diposit de la Recerca de Catalunya) Consorci de Biblioteques Universitàries de Catalunya (CBUC)
Repositori Digital de la UPF (Universitat Pompeu Fabra) Repositori Digital de la UPF (Universitat Pompeu Fabra)
Repositório Cientfico de Acesso Aberto de Portugal Repositório Cientfico de Acesso Aberto de Portugal
Repositorio Digital de Tesis PUCP (Pontificia Universidad Catolica del Peru) Repositorio Digital de Tesis PUCP (Pontificia Universidad Catolica del Peru)
Repository Utrecht University Repository Utrecht University
Research Data Australia Australian National Data Service (ANDS)
Research Repository (RMIT University) Research Repository (RMIT University)
Retrodigitized Journals Swiss Electronic Academic Library Service (SEALS)
RiuNet (Universitat Politècnica de València) RiuNet (Universitat Politècnica de València)
ROAR (University of East London Repository) ROAR (University of East London Repository)
Rodopi Publishing Technology (IngentaConnect)
Royal Society Open Access Journals Royal Society Publishing
RSC Journals Royal Society of Chemistry Publishing
SA Open Access ePublications Sabinet
Safari Technical Books ProQuest
SAGE Journals SAGE Publications
Scholar Commons (University of South Florida) Scholar Commons (University of South Florida)
ScholarWorks @ UVM (University of Vermont) ScholarWorks @ UVM (University of Vermont)
SciELO SciELO
ScienceDirect Books and Journals (Elsevier) Elsevier
Scientific.Net Trans Tech Publications
SciTech Connect U.S. Dept. of Energy - Office of Scientific and Technical Information
SCOAP3 – Sponsoring Consortium for Open Access Publishing in Particle Physics SCOAP3 – Sponsoring Consortium for Open Access Publishing in Particle Physics
SDEIR (Université du Québec à Chicoutimi) SDEIR (Université du Québec à Chicoutimi)
SHAREOK Repository (University of Oklahoma/Oklahoma State University) SHAREOK Repository (University of Oklahoma/Oklahoma State University)
Smithsonian Research Online Smithsonian Research Online (Smithsonian Institution Libraries)
Social Theory Alexander Street Press
Society for Industrial and Applied Mathematics - SIAM Journals Society for Industrial and Applied Mathematics (SIAM)
Sociological Abstracts ProQuest
Springer Journals +  Books SpringerLink
SwePub- Free access National Library of Sweden (Kungliga biblioteket - Sveriges nationalbibliotek)
Sydney eScholarship Repository (University of Sydney) Sydney eScholarship Repository (University of Sydney)
Taylor & Francis Online - Journals Taylor & Francis Group
TDX (Tesis Doctorals en Xarxa) Consorci de Biblioteques Universitàries de Catalunya (CBUC)
TEORA (Telemark University College) TEORA (Telemark University College)
The American Institute of Aeronautics and Astronautics (AIAA) Publications The American Institute of Aeronautics and Astronautics (AIAA)
The AMICA Library Luna Imaging, Inc.
The ARTstor Digital Library ARTstor, Inc.
The Digital Karl Barth Library Alexander Street Press
The Digital Library of Classic Protestant Texts Alexander Street Press
The Digital Library of the Catholic Reformation Alexander Street Press
The Making of Modern Law: Legal Treatises, 1800–1926 Gale
The Making of Modern World, Part I + II Gale
The Portal to Texas History (University of North Texas) The Portal to Texas History (University of North Texas)
The World Bank eLibrary The World Bank Group
Thesis Server (State and University Library of Hamburg) Hamburg University Press
Thieme e-Journals Thieme Publishing Group
ThinkTech (Texas Tech University) ThinkTech (Texas Tech University)
Tímarit.is National and University Library of Iceland  (Landsbókasafn Íslands - Háskólabókasafn)
Twentieth Century North American Drama Alexander Street Press
U.S. Congressional Serial Set, 1817-1994 Readex, a Division of NewsBank, inc.
UBIRA ePapers (University of Birmingham) UBIRA ePapers (University of Birmingham)
UBIRA eTheses (University of  Birmingham) UBIRA eTheses (University of  Birmingham)
UCL Discovery (University College London) UCL Discovery (University College London)
Unitec Research Bank (Unitec Institute of Technology) Unitec Research Bank (Unitec Institute of Technology)
University of Chicago Press Journals University of Chicago Press
University of Guelph Theses and Dissertations University of Guelph Theses and Dissertations
UNT Digital Library (University of North Texas) UNT Digital Library (University of North Texas)
Vandenhoeck & Ruprecht Vandenhoeck & Ruprecht
VCU Scholars Compass (Virginia Commonwealth University) VCU Scholars Compass (Virginia Commonwealth University)
Vestnik Evropy East View Information Services
Voprosy istorii: Complete Collection East View Information Services
VU-DARE (VU University Amsterdam) VU-DARE (VU University Amsterdam)
Walter De Gruyter Books + Journals Walter de Gruyter GmbH (and hosted publishers)
Web of Science Thomson Reuters
Welsh Journals Online (National Library of Wales) National Library of Wales
White Rose Research Online (White Rose University Consortium) White Rose Research Online (White Rose University Consortium)
Wiley Online Library - Books +  Journals John Wiley & Sons, Inc.
wiso Bücher und Fachzeitschriften GBI-Genios Deutsche Wirtschaftsdatenbank GmbH
World Scientific Open Access Journals World Scientific Publishing Co.
Worldwide Political Science Abstracts ProQuest
ZORA (University of Zurich) ZORA (University of Zurich)
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