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 Claus, Helmut provides 1 hits
1	Proletarischer Internationalismus in Aktion. Zum 20. Jahrestag der Rückgabe der Bestände der Gothaer Forschungsbibliothek an die Regierung der DDR Claus, Helmut, in: Zentralblatt für Bibliothekswesen, 1977, S. 455-460

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

Proletarischer Internationalismus in Aktion. Zum 20. Jahrestag der Rückgabe der Bestände der Gothaer Forschungsbibliothek an die Regierung der DDR