• "The Diffusion of Non-nuclear Postures among U.S. Allies – Explaining West Germany's Nuclear Reversal", Paper prepared for the International Studies Association annual convention, San Francisco, CA, April 3-6, 2013.
  • "The Change toward Cooperation in the George W. Bush Administration's Nuclear Nonproliferation Policy toward North Korea" (= European University Studies, Series 31, Vol. 584), Frankfurt et al.: Peter Lang, 2010; 185 S.
  • "Nach Pjöngjangs Kernwaffentest: Die nukleare Nichtverbreitungspolitik der USA gegenüber Nordkorea", Stiftung Wissenschaft und Politik: SWP-Diskussionspapier FG3-DP 06, April 2007,, 10 S.