The Bibliographic Database of German Publication on Russia, the Soviet Union and its Successor States (RussGus)

The Bibliographic Database of German Publication on Russia, the Soviet Union and its Successor States (RussGus) contains about 170.000 records from 1974 to 2003 and collects publications of different document types: books, dissertations and other university publications, articles from journals and newspapers including reviews, maps etc. The lists of personal and geographical subjects are located here and here.

Your search for Widera, Bruno provides 2 hits
1	Der freie Bauer in der vormongolischen Rus' vom 10. bis 13. Jahrhundert Widera, Bruno, in: Jahrbuch für Geschichte des Feudalismus, 1977, S. 135-156
2	Die isländische Inglinga-Saga ins Russische übersetzt Widera, Bruno, in: Zeitschrift für Slawistik, 1976, S. 229-230

The Bibliographic Database of German Publication on Russia, the Soviet Union and its Successor States (RussGus)

Der freie Bauer in der vormongolischen Rus' vom 10. bis 13. Jahrhundert

Die isländische Inglinga-Saga ins Russische übersetzt