RT Book T1 School shootings: international research, case studies and concepts for prevention A2 Böckler, Nils 1984- LA English PP New York Heidelberg u.a. PB Springer YR 2013 UL https://krimdok.uni-tuebingen.de/Record/1620205238 CN 371.782 SN 9781461455257 K1 School Shootings K1 School Shootings : Cross-cultural studies K1 Schule : Amok : Kulturvergleich