RT Article T1 The Thin Blue Line in Schools: New Evidence on School-Based Policing Across the U.S A1 Sorensen, Lucy A2 Bushway, Shawn A2 Engberg, John Barker 1957- A2 Acosta, Montserrat A. LA English PB Annenberg Institute at Brown University YR 2021 UL https://krimdok.uni-tuebingen.de/Record/1912723999 DO 10.26300/heqx-rc69