TY - JOUR AU - Liu, Kangsheng AU - Liu, Zhuangyi AU - Zhang, Qiong TI - Eventual differentiability of a string with local Kelvin–Voigt damping JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2017 SP - 443 EP - 454 VL - 23 IS - 2 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/cocv/2015055/ DO - 10.1051/cocv/2015055 LA - en ID - COCV_2017__23_2_443_0 ER -