Single-authored book
Edited book (sole editor)
Edited Book (co-editor)
- 2018: Spy Chiefs, Volume 2: Intelligence Leaders in Europe, the Middle East and Asia (Washington, DC: Georgetown University Press) (co-editor with Christopher Moran, Ioanna Iordanou and Mark Stout)
Journal Articles
- 2014: ‘Cooperation between the HVA and the KGB, 1951-1989’, Bulletin of the German Historical Institute, Washington, DC, Supplement No. 9: The Stasi at Home and Abroad: Domestic Order and Foreign Intelligence, pp. 171-192.
- 2013: ‘Im Fadenkreuz der Stasi: Westliche Spionage in der DDR. Die Akten der Hauptabteilung IX’, Vierteljahrshefte für Zeitgeschichte, Vol. 61, No. 2, pp. 141-171. This article was used by members of the German Parliament from the German political party the Left Party (“Die Linke”) to support a question they put to the German Federal Government in December 2014: see Deutscher Bundestag, 04.12.2014; Kleine Anfrage der Fraktion DIE LINKE
- 2013: ‘The Economic Dimension of Cold War Intelligence-Gathering: The West’s Spies in the GDR’s Economy’, Journal of Cold War Studies, Vol. 15, No. 3(2013), pp. 76-107. See also the errata notice in the Journal of Cold War Studies, Vol. 16, No. 1 (2014), p. 3.
- 2005: ‘The Scientist Who Came In from the Cold: Heinz Barwich’s Escape from the GDR’, Intelligence and National Security, Vol. 20, No. 4, pp. 608-630.
- 2005: ‘What we have discovered about the Cold War is what we already knew: Julius Mader and the Western secret services during the Cold War’, Cold War History, Vol. 5, No. 2, pp. 235-258.