@article{10_2140_agt_2014_14_925,
     author = {Burton, Stephan D and Purcell, Jessica S},
     title = {Geodesic systems of tunnels in hyperbolic 3{\textendash}manifolds},
     journal = {Algebraic and Geometric Topology},
     pages = {925--952},
     year = {2014},
     volume = {14},
     number = {2},
     doi = {10.2140/agt.2014.14.925},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2014.14.925/}
}