TY - JOUR AU - Ammar-Khodja, Farid AU - Geymonat, Giuseppe AU - Münch, Arnaud TI - On the exact controllability of a system of mixed order with essential spectrum JO - Comptes Rendus. Mathématique PY - 2008 SP - 629 EP - 634 VL - 346 IS - 11-12 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.crma.2008.04.009/ DO - 10.1016/j.crma.2008.04.009 LA - en ID - CRMATH_2008__346_11-12_629_0 ER -