TY - JOUR AU - Johnson, Jesse TI - Locally unknotted spines of Heegaard splittings JO - Algebraic and Geometric Topology PY - 2005 SP - 1573 EP - 1584 VL - 5 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2005.5.1573/ DO - 10.2140/agt.2005.5.1573 ID - 10_2140_agt_2005_5_1573 ER -