The European Bibliography of Slavic and East European Studies (EBSEES) - 1991-2007

The European Bibliography of Slavic and East European Studies (EBSEES) collects books, journal articles, reviews and dissertations from Eastern Europe (former countries of Eastern Bloc) which were published in Belgium, Germany, Finland, France, Great Britain, the Netherlands, Austria and Switzerland from 1991 to 2007. The segment "Literature" and "Culture" of the European Bibliography of Slavic and East European Studies contains 18.000 bibliographic entries (from the total asset of 85.000). More information can be found here.

Your search for Eastern Europe / History (to 1918) / Prussia provides 12 hits
11	Ordines militares. Colloquia Torunensia Historica Toruń, Universitas Nicolai Copernici, 1983-1985
12	Ordensherrschaft, Stände und Stadtpolitik. Zur Entwicklung des Preussenlandes im 14. und 15. Jahrhundert Lüneburg, Nordostdeutsches Kulturwerk , 1985

The European Bibliography of Slavic and East European Studies (EBSEES) - 1991-2007

Ordines militares. Colloquia Torunensia Historica

Ordensherrschaft, Stände und Stadtpolitik. Zur Entwicklung des Preussenlandes im 14. und 15. Jahrhundert