TY - JOUR AU - Ryan, Eugene P. AU - Sangwin, Chris J. AU - Townsend, Philip TI - Controlled functional differential equations : approximate and exact asymptotic tracking with prescribed transient performance JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2009 SP - 745 EP - 762 VL - 15 IS - 4 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/cocv:2008045/ DO - 10.1051/cocv:2008045 LA - en ID - COCV_2009__15_4_745_0 ER -