%0 Journal Article %A Ryan, Eugene P. %A Sangwin, Chris J. %A Townsend, Philip %T Controlled functional differential equations : approximate and exact asymptotic tracking with prescribed transient performance %J ESAIM: Control, Optimisation and Calculus of Variations %D 2009 %P 745-762 %V 15 %N 4 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/cocv:2008045/ %R 10.1051/cocv:2008045 %G en %F COCV_2009__15_4_745_0