%0 Journal Article %A Nakoulima, Ousseynou %T Optimal control for distributed systems subject to null-controllability. Application to discriminating sentinels %J ESAIM: Control, Optimisation and Calculus of Variations %D 2007 %P 623-638 %V 13 %N 4 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/cocv:2007038/ %R 10.1051/cocv:2007038 %G en %F COCV_2007__13_4_623_0