%0 Journal Article %A Yacine Chitour %A Guilherme Mazanti %A Mario Sigalotti %T Approximate and exact controllability of linear difference equations %J Journal de l’École polytechnique — Mathématiques %D 2020 %P 93-142 %V 7 %I École polytechnique %U https://jep.centre-mersenne.org/articles/10.5802/jep.112/ %R 10.5802/jep.112 %G en %F JEP_2020__7__93_0