TY - JOUR AU - Austin, David AU - Rolfsen, Dale TI - Homotopy of Knots and the Alexander Polynomial JO - Canadian mathematical bulletin PY - 1999 SP - 257 EP - 262 VL - 42 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1999-031-6/ DO - 10.4153/CMB-1999-031-6 ID - 10_4153_CMB_1999_031_6 ER -