@Article{ FriLus18, author = { Fried, Eliot and Lussardi, Luca }, title = { Monotonicity formulae for smooth extremizers of integral functionals }, journal = { Rend. Lincei Mat. Appl. }, year = { 2019 }, volume = { 30 }, number = { 2 }, pages = { 365-377 }, URL = { http://cvgmt.sns.it/paper/4124/ }, note = { cvgmt preprint} }