@article{02206561, title = {Khovanov's homology for tangles and cobordisms.}, journal = {Geometry \& Topology}, volume = {5}, year = {2005}, pages = {1443-1499}, doi = {10.2140/gt.2005.9.1443}, zbl = {1084.57011}, language = {en}, url = {http://dml.mathdoc.fr/item/02206561} }
Bar-Natan, Dror. Khovanov's homology for tangles and cobordisms.. Geometry & Topology, Tome 5 (2005) pp. 1443-1499. doi : 10.2140/gt.2005.9.1443. http://gdmltest.u-ga.fr/item/02206561/