%0 Journal Article %A Chaves-Silva, F.W. %A Puel, J.-P. %A Santos, M.C. %T Boundary null controllability as the limit of internal controllability: The heat case %J ESAIM: Control, Optimisation and Calculus of Variations %D 2020 %V 26 %I EDP-Sciences %U http://archive.numdam.org/articles/10.1051/cocv/2020013/ %R 10.1051/cocv/2020013 %G en %F COCV_2020__26_1_A91_0