@Misc{ GofPed21, author = { Goffi, Alessandro and Pediconi, Francesco }, title = { Sobolev regularity for nonlinear Poisson equations with Neumann boundary conditions on Riemannian manifolds }, journal = { Forum Mathematicum }, year = { 2021 }, doi = { 10.1515/forum-2022-0119 }, pages = { }, URL = { http://cvgmt.sns.it/paper/5351/ }, note = { cvgmt preprint} }