@article{CLTM_2009_2009_1_a21,
     author = {Cravo, Gloria},
     title = {Controllability of partially prescribed matrices.},
     journal = {Collectanea mathematica},
     pages = {335-348},
     publisher = {mathdoc},
     volume = {60},
     number = {3},
     year = {2009},
     zbl = {1172.93006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_2009_2009_1_a21/}
}