%0 Journal Article
%A Chittaro, Francesca C.
%A Poggiolini, Laura
%T Singular extremals in $L^1$-optimal control problems: sufficient optimality conditions
%J ESAIM: Control, Optimisation and Calculus of Variations
%D 2020
%V 26
%I EDP-Sciences
%U http://www.numdam.org/articles/10.1051/cocv/2020023/
%R 10.1051/cocv/2020023
%G en
%F COCV_2020__26_1_A99_0