The Routledge handbook of terrorism research

Table of Contents: “…1. Introduction Alex P. Schmid 2. The Problem of Defining Terrorism Alex P. …”

Terrorism studies a reader

Table of Contents: “…Gibbs -- The challenges of conceptualizing terrorism / Leonard Weinberg, Ami Pedahzur and Sivan Hirsch-Hoefler -- The response problem as a definition problem / Alex P. Schmid -- Section 3. Understanding and explaining terrorism. …”