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 Mehls, Hartmut provides 2 hits
1	Der Erfahrungsaustausch des VEB Elektrokohle Berlin-Lichtenberg mit sowjetischen Partnerbetrieben 1956 bis 1960 Mehls, Hartmut, in: Jahrbuch für Wirtschaftsgeschichte, 1977, S. 31-42
2	Zu den Ursachen der Grenzschließung am 13.August 1961 (Thesen) Mehls, Hartmut, in: Utopie kreativ, 1991, 12, S. 71-78

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

Der Erfahrungsaustausch des VEB Elektrokohle Berlin-Lichtenberg mit sowjetischen Partnerbetrieben 1956 bis 1960

Zu den Ursachen der Grenzschließung am 13.August 1961 (Thesen)