@article{10_2140_agt_2007_7_957,
     author = {Tomova, Maggy},
     title = {Multiple bridge surfaces restrict knot distance},
     journal = {Algebraic and Geometric Topology},
     pages = {957--1006},
     year = {2007},
     volume = {7},
     number = {2},
     doi = {10.2140/agt.2007.7.957},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2007.7.957/}
}