@Unpublished{K-theory/0933, author = {{Joseph Ayoub and Steven Zucker}}, title = {{Relative Artin motives and the reductive Borel-Serre compactification of a locally symmetric variety}}, note = {{Preprint, June 9, 2009, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0933/}}} }