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Sentencing Reforms and the War on Drugs: An Analysis of Sentence Outcomes for Narcotics Offenders Adjudicated in U.S. District Courts on the Southwest Border 
Richard D. Hartley 
Journal of Contemporary Criminal Justice 24(4): 437-461 (2008)

The Impact Of Sentencing Guidelines On State-Level Sanctions: An Analysis Over Time 
Sean Nicholson-Crotty 
Crime and Delinquency 50(3): 395-411 (2004)