Libraries:

National Library of Albania

Bayerische Staatsbibliothek

Staatsbibliothek zu Berlin

National and University Library of Bosnia and Herzegovina

The British Library

St. St. Cyril and Methodius National Library

National Library of the Czech Republic

Metropolitan Ervin Szabó Library

National Library of Estonia

Bibliotheque nationale de France

Catalogue Collectif de France

National Library of Greece

Library of the Hungarian Academy of Sciences

National Library of Latvia

Martynas Mažvydas National Library of Lithuania

Virtual Library of Macedonia

Matica Srpska Library

National Library of the Republic of Moldova

National Library, Poland

National Library of Romania

National Library of Serbia

Slovak National Library

National and University Library of Slovenia

Virtual Library of Slovenia

National Széchényi Library

Universität Wien Bibliothek

National and University Library Zagreb

 Texts:

Croatian Portal of Scientific Jorunals

Digitalna narodna biblioteka Srbije

Digital text database of Hungarian social sciences (1800-1948)

Polish Virtual Library

Discourses of Collective Idenitity in East Central Europe (1770-1945)

The Nationalism Project

Intellectual History of Patriotism in East Central Europe

Webportal on the Slovenian Spring (1988-1990)

Other:

European Soeciety for the History of Political Thought

Internet Archive