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 Horak, S.A. provides 2 hits
1	Horak: Rebell. Erinnerungen eines antisowjetischen Untergrundkämpfers Bartsch, Günter, in: Kontinent, 14, 1988, 4, S. 109 (Rezension)
2	Horak, Stephan M.: The First Treaty of World War I. Ukraine's Treaty with the Central Powers of February 9, 1918. Mark, Rudolf A., in: Jahrbücher für Geschichte Osteuropas, 38, 1990, S. 295-297

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

Horak: Rebell. Erinnerungen eines antisowjetischen Untergrundkämpfers

Horak, Stephan M.: The First Treaty of World War I. Ukraine's Treaty with the Central Powers of February 9, 1918.