@article{10_2140_agt_2020_20_3329,
     author = {Bou-Rabee, Khalid and Hooper, W Patrick},
     title = {The extrinsic primitive torsion problem},
     journal = {Algebraic and Geometric Topology},
     pages = {3329--3376},
     year = {2020},
     volume = {20},
     number = {7},
     doi = {10.2140/agt.2020.20.3329},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2020.20.3329/}
}