%0 Journal Article %A Janzen, David %A Wise, Daniel T %T A smallest irreducible lattice in the product of trees %J Algebraic and Geometric Topology %D 2009 %P 2191-2201 %V 9 %N 4 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2009.9.2191/ %R 10.2140/agt.2009.9.2191 %F 10_2140_agt_2009_9_2191