@article{02107549,
title = {Boundary value problem for second-order differential operators with mixed nonlocal boundary conditions.},
journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]},
volume = {5},
year = {2004},
zbl = {1069.47053},
language = {en},
url = {http://dml.mathdoc.fr/item/02107549}
}
Denche, M.; Kourta, A. Boundary value problem for second-order differential operators with mixed nonlocal boundary conditions.. JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 5 (2004) . http://gdmltest.u-ga.fr/item/02107549/