TY - JOUR AU - Janzen, David AU - Wise, Daniel T TI - A smallest irreducible lattice in the product of trees JO - Algebraic and Geometric Topology PY - 2009 SP - 2191 EP - 2201 VL - 9 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2009.9.2191/ DO - 10.2140/agt.2009.9.2191 ID - 10_2140_agt_2009_9_2191 ER -