PDF - http://www.vera.org/publication_pdf/319_590.pdf?bulletin=55&token=1262
James A. Wilson, Yury Cheryachukin, Robert C. Davis, Jean Dauphinee, Robert Hope, Kajal Gehi, and Timothy Ross
"The Greenlight study is an important first step in understanding the dynamics of prisoner reentry. It points out the difficulty of separating the many variables that affect outcomes and the need to work more intensively in pursuit of effective reentry strategies."