%0 Journal Article %A Jacob, B. %A Zwart, H. %T Exact Observability of Diagonal Systems With a One-Dimensional Output Operator %J International Journal of Applied Mathematics and Computer Science %D 2001 %P 1277-1283 %V 11 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IJAMCS_2001_11_6_a3/ %G en %F IJAMCS_2001_11_6_a3