RT Article T1 Editor’s Introduction: Terrorism and Violent Extremism JF Journal of quantitative criminology VO 36 IS 3 SP 399 OP 405 A1 LaFree, Gary 1951- A2 Weerman, Frank M. 1968- A2 Bijleveld, Catrien C. J. H. 1958- LA English YR 2020 UL https://krimdok.uni-tuebingen.de/Record/1764276426 DO 10.1007/s10940-020-09475-5