TY  - JOUR
AU  - De Rosa, Luigi
AU  - Tione, Riccardo
TI  - On a question of D. Serre
JO  - ESAIM: Control, Optimisation and Calculus of Variations
PY  - 2020
VL  - 26
PB  - EDP-Sciences
UR  - http://archive.numdam.org/articles/10.1051/cocv/2020021/
DO  - 10.1051/cocv/2020021
LA  - en
ID  - COCV_2020__26_1_A97_0
ER  -