@article{01803750, title = {A functor-valued invariant of tangles.}, journal = {Geometry \& Topology}, volume = {6}, year = {2002}, pages = {665-741}, doi = {10.2140/agt.2002.2.665}, zbl = {1002.57006}, language = {en}, url = {http://dml.mathdoc.fr/item/01803750} }
Khovanov, Mikhail. A functor-valued invariant of tangles.. Geometry & Topology, Tome 6 (2002) pp. 665-741. doi : 10.2140/agt.2002.2.665. http://gdmltest.u-ga.fr/item/01803750/