@article{02163619,
title = {Perturbed Fredholm boundary value problems for delay differential systems.},
journal = {Abstract and Applied Analysis},
volume = {2003},
year = {2003},
pages = {843-864},
doi = {10.1155/S1085337503304026},
zbl = {1077.34069},
language = {en},
url = {http://dml.mathdoc.fr/item/02163619}
}
Boichuk, Alexander A.; Grammatikopoulos, Myron K. Perturbed Fredholm boundary value problems for delay differential systems.. Abstract and Applied Analysis, Tome 2003 (2003) pp. 843-864. doi : 10.1155/S1085337503304026. http://gdmltest.u-ga.fr/item/02163619/