TY  - JOUR
AU  - Borodzik, Maciej
AU  - Friedl, Stefan
TI  - The unknotting number and classical invariants, I
JO  - Algebraic and Geometric Topology
PY  - 2015
SP  - 85
EP  - 135
VL  - 15
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.2140/agt.2015.15.85/
DO  - 10.2140/agt.2015.15.85
ID  - 10_2140_agt_2015_15_85
ER  -