@Misc{ BraFra17, author = { Brasco, Lorenzo and Franzina, Giovanni }, title = { A pathological example in Nonlinear Spectral Theory }, journal = { Adv. Nonlinear Anal. }, year = { 2017 }, pages = { 9 }, URL = { http://cvgmt.sns.it/paper/3346/ }, note = { cvgmt preprint} }