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 Sigismund, emperor of the Holy Roman Empire provides 2 hits
1	König/Kaiser Sigismund, der Deutsche Orden und Polen-Litauen. Stationen einer problembeladenen Beziehung Hoensch, Jörg K., in: Zeitschrift für Ostmitteleuropaforschung, 46, 1997, p. 1-44
2	Die Deutschen um 1500 in den Metropolen Prag, Ofen und Krakau. Versuch eines Vergleichs Belzyt, Leszek, in: Zeitschrift für Ostmitteleuropaforschung, 46, 1997, p. 45-62

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

König/Kaiser Sigismund, der Deutsche Orden und Polen-Litauen. Stationen einer problembeladenen Beziehung

Die Deutschen um 1500 in den Metropolen Prag, Ofen und Krakau. Versuch eines Vergleichs