Hurwitz study on impact of legacy preference for college admissions

[SAM2]

NY Times article referencing study is here: http://www.nytimes.com/2011/01/09/education/09legacies.html
Another article on Hurwitz study, with more detail: http://chronicle.com/article/Legacys-Advantage-May-Be/125812/

If anyone can post a link to Hurwitz's actual study, as opposed to a summary article, I'd really appreciate it.