@article{COCV_2014__20_3_924_0,
     author = {Badra, Mehdi and Takahashi, Tak\'eo},
     title = {On the {Fattorini} criterion for approximate controllability and stabilizability of parabolic systems},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {924--956},
     publisher = {EDP-Sciences},
     volume = {20},
     number = {3},
     year = {2014},
     doi = {10.1051/cocv/2014002},
     mrnumber = {3264229},
     zbl = {1292.93022},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv/2014002/}
}