TY  - JOUR
AU  - Livingston, Charles
TI  - Notes on the knot concordance invariant Upsilon
JO  - Algebraic and Geometric Topology
PY  - 2017
SP  - 111
EP  - 130
VL  - 17
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.2140/agt.2017.17.111/
DO  - 10.2140/agt.2017.17.111
ID  - 10_2140_agt_2017_17_111
ER  -