Search Results Use the search box below to revise your search, or start a new search. Studies (3) Variables Publications Your query returned 3 studies. Series results are grouped under the most relevant study. Ungroup series results to view all results. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Examination of Crime Guns and Homicide in Pittsburgh, Pennsylvania, 1987-1998 (ICPSR 2895) Cohen, Jacqueline; Gorr, Wilpen 2. Intercity Variation in Youth Homicide, Robbery, and Assault, 1984-2006 [United States] (ICPSR 30981) Strom, Kevin; Browne, Angela 3. Neighborhood Violence in Pittsburgh, Pennsylvania, 1996-2007 (ICPSR 28441) Wilson, Jeremy M.; Chermak, Steven; McGarrell, Edmund F.