@article{article6b1b718d,
title   = {Existence results for abstract impulsive second-order neutral functional differential equations},
author = {Morales, Eduardo Alex Hernández and Henriquez, Hernán R. and McKibben, Mark A.},
year = {2009},
doi = {10.1016/j.na.2008.03.062},
journal   = {Nonlinear Analysis: Theory, Methods & Applications}
}