@article{05002616, title = {A Legendrian Thurston-Bennequin bound from Khovanov homology.}, journal = {Geometry \& Topology}, volume = {5}, year = {2005}, pages = {1637-1653}, doi = {10.2140/agt.2005.5.1637}, zbl = {1091.57009}, language = {en}, url = {http://dml.mathdoc.fr/item/05002616} }
Ng, Lenhard. A Legendrian Thurston-Bennequin bound from Khovanov homology.. Geometry & Topology, Tome 5 (2005) pp. 1637-1653. doi : 10.2140/agt.2005.5.1637. http://gdmltest.u-ga.fr/item/05002616/