@article{10_2140_agt_2020_20_451,
     author = {Liechti, Livio and Strenner, Bal\'azs},
     title = {Minimal {pseudo-Anosov} stretch factors on nonoriented surfaces},
     journal = {Algebraic and Geometric Topology},
     pages = {451--485},
     year = {2020},
     volume = {20},
     number = {1},
     doi = {10.2140/agt.2020.20.451},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2020.20.451/}
}