Koehler, D. (2017). Right-wing terrorism in the 21st century: The "National Socialist Underground" and the history of terror from the far-right in Germany. Routledge.

Koehler, Daniel. Right-wing Terrorism in the 21st Century: The "National Socialist Underground" and the History of Terror from the Far-right in Germany. London [u.a.]: Routledge, 2017.

Koehler, Daniel. Right-wing Terrorism in the 21st Century: The "National Socialist Underground" and the History of Terror from the Far-right in Germany. Routledge, 2017.