@article{10_2140_agt_2015_15_1863,
     author = {Irmer, Ingrid},
     title = {The {Chillingworth} class is a signed stable length},
     journal = {Algebraic and Geometric Topology},
     pages = {1863--1876},
     year = {2015},
     volume = {15},
     number = {4},
     doi = {10.2140/agt.2015.15.1863},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2015.15.1863/}
}