TY - JOUR AU - Leininger, Christopher J AU - Reid, Alan W TI - The co-rank conjecture for 3–manifold groups JO - Algebraic and Geometric Topology PY - 2002 SP - 37 EP - 50 VL - 2 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2002.2.37/ DO - 10.2140/agt.2002.2.37 ID - 10_2140_agt_2002_2_37 ER -