RussGus: 2 hits for Bernhardt, P.

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 Bernhardt, P. provides 2 hits
1	Chauncy D. Harris: Guide to Geographical Bibliographies and Reference Works in Russian or on the Soviet Union. Annotated List of 2660 Bibliographies or Reference Aids. Bernhardt, P., in: Petermanns Geographische Mitteilungen, 1977, S. 202 (Rezension)
2	Herbert Scurla (Hrsg.) Jenseits des Steinernen Tores. Reisen dt. Forscher d. 18. u. 19. Jh. durch Sibirien. Johann Georg Gmelin, Georg Wilhelm Steller, Peter Simon Pallas, Adolph Erman, Gustav Rose, Wilhelm Radloff, Otto Finsch. 3. Aufl. Bernhardt, P., in: Petermanns Geographische Mitteilungen, 1977, S. 41 (Rezension)

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

Chauncy D. Harris: Guide to Geographical Bibliographies and Reference Works in Russian or on the Soviet Union. Annotated List of 2660 Bibliographies or Reference Aids.

Herbert Scurla (Hrsg.) Jenseits des Steinernen Tores. Reisen dt. Forscher d. 18. u. 19. Jh. durch Sibirien. Johann Georg Gmelin, Georg Wilhelm Steller, Peter Simon Pallas, Adolph Erman, Gustav Rose, Wilhelm Radloff, Otto Finsch. 3. Aufl.