@article{10_2140_agt_2006_6_1893,
     author = {Silver, Daniel S and Williams, Susan G},
     title = {Twisted {Alexander} polynomials detect the unknot},
     journal = {Algebraic and Geometric Topology},
     pages = {1893--1901},
     year = {2006},
     volume = {6},
     number = {4},
     doi = {10.2140/agt.2006.6.1893},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2006.6.1893/}
}