%0 Journal Article %A E. Fernàndez-Cara %T Remarks on the approximate and null controllability of semilinear parabolic equations %J ESAIM. Proceedings %D 1998 %P 73-81 %V 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/proc:1998021/ %R 10.1051/proc:1998021 %G en %F EP_1998_4_a4