@article{CRMATH_2022__360_G2_161_0,
     author = {Samperton, Eric G.},
     title = {Free actions on surfaces that do not extend to arbitrary actions on 3-manifolds},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {161--167},
     publisher = {Acad\'emie des sciences, Paris},
     volume = {360},
     number = {G2},
     year = {2022},
     doi = {10.5802/crmath.277},
     language = {en},
     url = {http://archive.numdam.org/articles/10.5802/crmath.277/}
}