RussGus: 2 hits for Ronne, B.

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 Ronne, B. provides 2 hits
1	Nils Rossing, Birgit Ronne: Apocryphal - Not Apocryphal? A critical analysis of the diskussion concerning the correspondence between Tsar Ivan IV Groznyj and Prince Andrej Kurbskij. (Copenhagen University. Institut of Slavonic Studies. Studier, 7) Hoffmann, Peter, in: Jahrbuch für Geschichte der sozialistischen Länder Europas, 26, 1982, 1, S. 198-200 (Rezension)
2	Niels Rossing, Birgit Ronne: Apocryphical - not Apocryphical. A Critical Analysis of the Discussion concerning the Correspondence Between Tsar Ivan IV Groznyj and Prince Andrej Kurbskij (Apokryph - Nicht Apokryph. Eine kritische Analyse der Diskussion um die Korrespndenz zwischen Zar Ivan IV. und dem Prinzen Andrej Kurbskij) (Kobenhavns Universitets Slaviske Institut / Copenhagen University, Institute of Slavonic Studies, Studier 7.) Kappeler, Andreas, in: Historische Zeitschrift, 234, 1982, S. 437-438 (Rezension)

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

Nils Rossing, Birgit Ronne: Apocryphal - Not Apocryphal? A critical analysis of the diskussion concerning the correspondence between Tsar Ivan IV Groznyj and Prince Andrej Kurbskij. (Copenhagen University. Institut of Slavonic Studies. Studier, 7)