RT Article T1 Violence in schools: the massacre of Erfurt in Thuringia/Germany - a pupil as gunman and marksman, teachers had run-ins JF EuroCriminology IS 16 SP 129 OP 131 A1 Harnischmacher, Robert F. J. LA English YR 2002 UL https://krimdok.uni-tuebingen.de/Record/1639835024 K1 Schule K1 Gewalt K1 Amokläufer