Library of the University of Applied Sciences BFI Vienna http://www.fh-vie.ac.at/Die-FH/Bibliothek

Library of the Vienna University of Economics and Business http://www.wu.ac.at/library

Electronic Journals Library http://rzblx1.uni-regensburg.de/ezeit/fl.phtml?bibid=UBWI

University of Vienna, Main Library http://bibliothek.univie.ac.at/main_library

Database University of Vienna http://bibliothek.univie.ac.at/datenbanken or http://aleph.univie.ac.at/

Sociology and Political Science Library http://www.ub.univie.ac.at/fb-soziologie

Austrian National Library http://www.onb.ac.at/kataloge/index.htm

Federal Agency for Civic Education www.bpb.de

Democracy Center Vienna http://www.demokratiezentrum.org/

Legal Information System of the Federal Chancellery http://www.ris.bka.gv.at/

Unsere Verfassung http://www.unsereverfassung.at/

ISI Web of Knowledge https://webofknowledge.com

Research Papers on Economics http://econpapers.repec.org/

European Integration Online Portal http://eiop.or.at

ECLAS – European Commission Libraries Catalogue http://ec.europa.eu/eclas/F

Carnegie Academic Catalogue http://carnegieendowment.org/academic/

ITHAKA publications search engine https://www.jstor.org/