@article{02206556,
title = {The nonuniqueness of Chekanov polynomials of Legendrian knots.},
journal = {Geometry \& Topology},
volume = {5},
year = {2005},
pages = {1221-1252},
doi = {10.2140/gt.2005.9.1221},
zbl = {1084.57009},
language = {en},
url = {http://dml.mathdoc.fr/item/02206556}
}
Melvin, Paul; Shrestha, Sumana. The nonuniqueness of Chekanov polynomials of Legendrian knots.. Geometry & Topology, Tome 5 (2005) pp. 1221-1252. doi : 10.2140/gt.2005.9.1221. http://gdmltest.u-ga.fr/item/02206556/