@Misc{ Cin11, author = { Cinti, Eleonora }, title = { Saddle-shaped solutions of bistable elliptic equations involving the half-Laplacian }, journal = { Ann. Scuola Norm. Sup. Pisa }, year = { 2011 }, pages = { }, URL = { http://cvgmt.sns.it/paper/1915/ }, note = { cvgmt preprint} }