Reference works

General german biography & New german biography (ADB & NDB)

Digital index with entries relevant also for Eastern European Studies

Altrichter: The Soviet Union. From the October Revolution until Stalin's death

Online version of Helmut Altrichter's monography (in German)

Baltische biographische Lexika

Digitized biographic reference books

Clio Online-Guide Osteuropa

Überblick über Online-Ressourcen zur Osteuropäischen Geschichte

Dates in Russian history

Data base with search possibilities for a date, a time period or an era