TY - JOUR AU - Martin, Philippe AU - Rouchon, Pierre AU - Rudolph, Joachim TI - Invariant tracking JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2004 SP - 1 EP - 13 VL - 10 IS - 1 PB - EDP-Sciences UR - http://archive.numdam.org/articles/10.1051/cocv:2003037/ DO - 10.1051/cocv:2003037 LA - en ID - COCV_2004__10_1_1_0 ER -