%0 Journal Article
%A Castelpietra, Marco
%T Interior sphere property for level sets of the value function of an exit time problem
%J ESAIM: Control, Optimisation and Calculus of Variations
%D 2009
%P 102-116
%V 15
%N 1
%I EDP-Sciences
%U http://www.numdam.org/articles/10.1051/cocv:2008018/
%R 10.1051/cocv:2008018
%G en
%F COCV_2009__15_1_102_0