RT Article T1 Federal subsidies and evidence of progressive change: A quantitative assessment of the effects of targeted grants on manpower and innovation in large U. S. police agencies JF Police quarterly VO 10 IS 1 SP 87 OP 107 A1 Helms, Ronald A2 Gutierrez, Ricky S. 1953- LA English YR 2007 UL https://krimdok.uni-tuebingen.de/Record/1912557878 DO 10.1177/1098611106296480