@article{00710124,
title = {Pointwise controllability as limit of internal controllability for the wave equation in one space dimension.},
journal = {Portugaliae Mathematica. Nova S\'erie},
volume = {51},
year = {1994},
pages = {335-350},
zbl = {0814.35066},
language = {en},
url = {http://dml.mathdoc.fr/item/00710124}
}
Fabre, Caroline; Puel, Jean-Pierre. Pointwise controllability as limit of internal controllability for the wave equation in one space dimension.. Portugaliae Mathematica. Nova Série, Tome 51 (1994) pp. 335-350. http://gdmltest.u-ga.fr/item/00710124/