@Article{ MadMaiPer19, author = { Maddalena, Francesco and Mainini, Edoardo and Percivale, Danilo }, title = { Euler's optimal profile problem }, journal = { Calc. Var. Partial Differential Equations }, year = { 2020 }, volume = { 59 }, number = { 56 }, pages = { }, URL = { http://cvgmt.sns.it/paper/4281/ }, note = { cvgmt preprint} }