RT Article T1 Citizen satisfaction with private security guards in the Netherlands: Perceptions of an ambiguous occupation JF European journal of criminology VO 7 IS 3 SP 214 OP 234 A1 Steden, Ronald van A2 Nalla, Mahesh LA English YR 2010 UL https://krimdok.uni-tuebingen.de/Record/1394129173 K1 Private Sicherheitsdienste K1 Öffentliche Meinung K1 Zufriedenheit K1 Niederlande DO 10.1177/1477370809359264