@article{AIHPC_2017__34_2_469_0,
     author = {Hamel, Fran\c{c}ois and Ros-Oton, Xavier and Sire, Yannick and Valdinoci, Enrico},
     title = {A one-dimensional symmetry result for a class of nonlocal semilinear equations in the plane},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {469--482},
     publisher = {Elsevier},
     volume = {34},
     number = {2},
     year = {2017},
     doi = {10.1016/j.anihpc.2016.01.001},
     mrnumber = {3610941},
     zbl = {1358.45004},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.anihpc.2016.01.001/}
}