@article{01803751, title = {An almost-integral universal Vassiliev invariant of knots.}, journal = {Geometry \& Topology}, volume = {6}, year = {2002}, pages = {649-664}, doi = {10.2140/agt.2002.2.649}, zbl = {1002.57023}, language = {en}, url = {http://dml.mathdoc.fr/item/01803751} }
Willerton, Simon. An almost-integral universal Vassiliev invariant of knots.. Geometry & Topology, Tome 6 (2002) pp. 649-664. doi : 10.2140/agt.2002.2.649. http://gdmltest.u-ga.fr/item/01803751/