TY - JOUR AU - Chaves-Silva, F.W. AU - Puel, J.-P. AU - Santos, M.C. TI - Boundary null controllability as the limit of internal controllability: The heat case JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2020 VL - 26 PB - EDP-Sciences UR - http://archive.numdam.org/articles/10.1051/cocv/2020013/ DO - 10.1051/cocv/2020013 LA - en ID - COCV_2020__26_1_A91_0 ER -