%0 Journal Article %A Cravo, Gloria %T Controllability of partially prescribed matrices. %J Collectanea mathematica %D 2009 %P 335-348 %V 60 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CLTM_2009_2009_1_a21/ %G en %F CLTM_2009_2009_1_a21