%0 Journal Article
%A De Rosa, Luigi
%A Tione, Riccardo
%T On a question of D. Serre
%J ESAIM: Control, Optimisation and Calculus of Variations
%D 2020
%V 26
%I EDP-Sciences
%U http://archive.numdam.org/articles/10.1051/cocv/2020021/
%R 10.1051/cocv/2020021
%G en
%F COCV_2020__26_1_A97_0