TY - JOUR AU - Li, Tatsien AU - Rao, Bopeng TI - Approximate boundary synchronization by groups for a coupled system of wave equations with coupled Robin boundary conditions JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2021 VL - 27 PB - EDP-Sciences UR - https://www.numdam.org/articles/10.1051/cocv/2021006/ DO - 10.1051/cocv/2021006 LA - en ID - COCV_2021__27_1_A12_0 ER -