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 Hannum, Hurst provides 1 hits
1	The Right to Leave in International Law and Practice (Das Recht auf Ausreise im Internationalen Recht und die Praxis) Hannum, Hurst, in: Die Minderheiten in der Sowjetunion und das Völkerrecht. Herausgegeben von Georg Brunner und Allan Kagedan, 1988, S. 177-189

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

The Right to Leave in International Law and Practice (Das Recht auf Ausreise im Internationalen Recht und die Praxis)