@article{10_2140_agt_2007_7_327,
     author = {Morton, H R},
     title = {Integrality of {Homfly} 1{\textendash}tangle invariants},
     journal = {Algebraic and Geometric Topology},
     pages = {327--338},
     year = {2007},
     volume = {7},
     number = {1},
     doi = {10.2140/agt.2007.7.327},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2007.7.327/}
}