TY - JOUR AU - Nakoulima, Ousseynou TI - Optimal control for distributed systems subject to null-controllability. Application to discriminating sentinels JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2007 SP - 623 EP - 638 VL - 13 IS - 4 PB - EDP-Sciences UR - http://archive.numdam.org/articles/10.1051/cocv:2007038/ DO - 10.1051/cocv:2007038 LA - en ID - COCV_2007__13_4_623_0 ER -