@article{1206133989,
author = {Narukawa, Kimiaki},
title = {Admissible null controllability and optimal time control},
journal = {Hiroshima Math. J.},
volume = {11},
number = {2},
year = {1981},
pages = { 533-551},
language = {en},
url = {http://dml.mathdoc.fr/item/1206133989}
}
Narukawa, Kimiaki. Admissible null controllability and optimal time control. Hiroshima Math. J., Tome 11 (1981) no. 2, pp. 533-551. http://gdmltest.u-ga.fr/item/1206133989/