%0 Journal Article
%A Tatsien Li
%A Bopeng Rao
%T Uniqueness theorem for a coupled system of wave equations with incomplete internal observation and application to approximate controllability
%J Comptes Rendus. Mathématique
%D 2022
%P 729-737
%V 360
%I Académie des sciences, Paris
%R 10.5802/crmath.341
%G en
%F CRMATH_2022__360_G6_729_0