@Article{ DeLeMaMa23, author = { De Filippis, Filomena and Leonetti, Francesco and Marcellini, Paolo and Mascolo, Elvira }, title = { The Sobolev class where a weak solution is a local minimizer }, journal = { Rendiconti Lincei - Matematica e Applicazioni }, year = { 2023 }, doi = { 10.4171/RLM/1014 }, volume = { 34 }, number = { 2 }, pages = { 451-463 }, URL = { http://cvgmt.sns.it/paper/6380/ }, note = { cvgmt preprint} }