@article{GDZPPN00203042X,
title = {Controllability of linear systems and a boundary value problem.},
journal = {Aequationes mathematicae},
volume = {15},
year = {1977},
pages = {81-92},
zbl = {0385.93006},
url = {http://dml.mathdoc.fr/item/GDZPPN00203042X}
}
Hiris, V.; Megan, M. Controllability of linear systems and a boundary value problem.. Aequationes mathematicae, Tome 15 (1977) pp. 81-92. http://gdmltest.u-ga.fr/item/GDZPPN00203042X/