@article{GT_2015_19_2_a6,
     author = {Algom-Kfir, Yael and Hironaka, Eriko and Rafi, Kasra},
     title = {Digraphs and cycle polynomials for free-by-cyclic groups},
     journal = {Geometry & topology},
     pages = {1111--1154},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {2015},
     doi = {10.2140/gt.2015.19.1111},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2015.19.1111/}
}