@Misc{ DeFStr22, author = { De Filippis, Cristiana and Stroffolini, Bianca }, title = { Singular multiple integrals and nonlinear potentials }, journal = { Journal of Functional Analysis }, year = { 2022 }, pages = { online first }, URL = { http://cvgmt.sns.it/paper/5474/ }, note = { cvgmt preprint} }