author = { Böckler, Nils },

title = { School shootings international research, case studies and concepts for prevention },

publisher = {Springer},

isbn = {9781461455257},

keywords = { School shootings , School shootings Cross-cultural studies , Schule , Amok , Kulturvergleich },

year = {2013},

address = { New York },

url = { http://slubdd.de/katalog?TN_libero_mab2 }