RT Article T1 Extremists and unconventional weapons: Examining the pursuit of chemical and biological agents JF Behavioral sciences of terrorism & political aggression A1 Guarrieri, Thomas R. A2 Meisel, Collin J. LA English YR 2020 UL https://krimdok.uni-tuebingen.de/Record/1912553538 DO 10.1080/19434472.2019.1698633