TY  - JOUR
AU  - Birman, Joan S
AU  - Hirsch, Michael D
TI  - A new algorithm for recognizing the unknot
JO  - Geometry & topology
PY  - 1998
SP  - 175
EP  - 220
VL  - 2
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.2140/gt.1998.2.175/
DO  - 10.2140/gt.1998.2.175
ID  - GT_1998_2_1_a8
ER  -