@article{CRMATH_2022__360_G6_729_0,
     author = {Li, Tatsien and Rao, Bopeng},
     title = {Uniqueness theorem for a coupled system of wave equations with incomplete internal observation and application to approximate controllability},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {729--737},
     publisher = {Acad\'emie des sciences, Paris},
     volume = {360},
     number = {G6},
     year = {2022},
     doi = {10.5802/crmath.341},
     zbl = {07547271},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/crmath.341/}
}