@article {22254, title = {Spatial Heterogeneity In the Effects of Immigration and Diversity on Neighborhood Homicide Rates}, journal = {Homicide Studies}, volume = {13}, year = {2009}, pages = {242-260}, url = {http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2911240/}, author = {Graif, Corina and Robert J. Sampson} }