@article{05825768, title = {Existence and Lyapunov stability of periodic solutions for generalized higher-order neutral differential equations.}, journal = {Boundary Value Problems [electronic only]}, volume = {2011}, year = {2011}, doi = {10.1155/2011/635767}, zbl = {1209.34085}, language = {en}, url = {http://dml.mathdoc.fr/item/05825768} }
Ren, Jingli; Cheung, Wing-Sum; Cheng, Zhibo. Existence and Lyapunov stability of periodic solutions for generalized higher-order neutral differential equations.. Boundary Value Problems [electronic only], Tome 2011 (2011) . doi : 10.1155/2011/635767. http://gdmltest.u-ga.fr/item/05825768/