@article{01566941,
title = {Sufficient conditions for elliptic problem of optimal control in },
journal = {Lobachevskii Journal of Mathematics},
volume = {7},
year = {2000},
pages = {3-17},
zbl = {0971.49012},
language = {en},
url = {http://dml.mathdoc.fr/item/01566941}
}
Addou, A.; Lahrech, S. Sufficient conditions for elliptic problem of optimal control in . Lobachevskii Journal of Mathematics, Tome 7 (2000) pp. 3-17. http://gdmltest.u-ga.fr/item/01566941/