@article{JEP_2020__7__93_0,
     author = {Chitour, Yacine and Mazanti, Guilherme and Sigalotti, Mario},
     title = {Approximate and exact controllability of linear difference equations},
     journal = {Journal de l{\textquoteright}\'Ecole polytechnique {\textemdash} Math\'ematiques},
     pages = {93--142},
     publisher = {Ecole polytechnique},
     volume = {7},
     year = {2020},
     doi = {10.5802/jep.112},
     mrnumber = {4033751},
     zbl = {07128378},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/jep.112/}
}