@Misc{ BonFigVaz18, author = { Bonforte, Matteo and Figalli, Alessio and Vazquez, Juan Luis }, title = { Sharp boundary behaviour of solutions to semilinear nonlocal elliptic equations }, journal = { Calc. Var. Partial Differential Equations }, year = { 2018 }, pages = { }, URL = { http://cvgmt.sns.it/paper/3843/ }, note = { cvgmt preprint} }