@article{02057402, title = {Knot Floer homology and the four-ball genus.}, journal = {Geometry \& Topology}, volume = {7}, year = {2003}, pages = {615-639}, doi = {10.2140/gt.2003.7.615}, zbl = {1037.57027}, language = {en}, url = {http://dml.mathdoc.fr/item/02057402} }
Ozsváth, Peter; Szabó, Zoltán. Knot Floer homology and the four-ball genus.. Geometry & Topology, Tome 7 (2003) pp. 615-639. doi : 10.2140/gt.2003.7.615. http://gdmltest.u-ga.fr/item/02057402/