Media type: E-Article Title: COPS and crime Contributor: Evans, William N.; Owens, Emily G. Published: Elsevier BV, 2007 Published in: Journal of Public Economics, 91 (2007) 1-2, Seite 181-201 Language: English DOI: 10.1016/j.jpubeco.2006.05.014 ISSN: 0047-2727 Origination: Footnote: