TY - JOUR AU - Cho, Sangbum AU - McCullough, Darryl TI - The tree of knot tunnels JO - Geometry & topology PY - 2009 SP - 769 EP - 815 VL - 13 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.2140/gt.2009.13.769/ DO - 10.2140/gt.2009.13.769 ID - GT_2009_13_2_a5 ER -