%0 Journal Article %T Virtual cubulation of nonpositively curved graph manifolds %A Yi Liu %J Mathematics %D 2011 %I arXiv %R 10.1112/jtopol/jtt010 %X In this paper, we show that a nontrivial compact graph manifold is nonpositively curved if and only if its fundamental group virtually embeds into a right-angled Artin group. As a consequence, nonpositively curved graph manifolds have linear fundamental groups. %U http://arxiv.org/abs/1110.1940v2