@article{01748345,
title = {Convergence of the boundary control for the wave equation in domains with holes of critical size.},
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2002},
year = {2002},
zbl = {1007.35007},
language = {en},
url = {http://dml.mathdoc.fr/item/01748345}
}
Nandakumaran, A.K. Convergence of the boundary control for the wave equation in domains with holes of critical size.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2002 (2002) . http://gdmltest.u-ga.fr/item/01748345/