%0 Journal Article %A Pollack, David %A Pollack, Robert %T A Construction of Rigid Analytic Cohomology Classes for Congruence Subgroups of SL3(Z) %J Canadian journal of mathematics %D 2009 %P 674-690 %V 61 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2009-036-0/ %R 10.4153/CJM-2009-036-0 %F 10_4153_CJM_2009_036_0