@article{1101306019,
author = {Liu, Xi-lan and Zhang, Guang and Cheng, Sui Sun},
title = {Existence of triple positive periodic solutions of a functional differential equation depending on a parameter},
journal = {Abstr. Appl. Anal.},
volume = {2004},
number = {1},
year = {2004},
pages = { 897-905},
language = {en},
url = {http://dml.mathdoc.fr/item/1101306019}
}
Liu, Xi-lan; Zhang, Guang; Cheng, Sui Sun. Existence of triple positive periodic solutions of a functional differential equation depending on a parameter. Abstr. Appl. Anal., Tome 2004 (2004) no. 1, pp. 897-905. http://gdmltest.u-ga.fr/item/1101306019/