@article{05848777,
title = {Positive periodic solutions of nonlinear first-order functional difference equations.},
journal = {Discrete Dynamics in Nature and Society},
volume = {2010},
year = {2010},
doi = {10.1155/2010/419536},
zbl = {1208.39024},
language = {en},
url = {http://dml.mathdoc.fr/item/05848777}
}
Ma, Ruyun; Chen, Tianlan; Lu, Yanqiong. Positive periodic solutions of nonlinear first-order functional difference equations.. Discrete Dynamics in Nature and Society, Tome 2010 (2010) . doi : 10.1155/2010/419536. http://gdmltest.u-ga.fr/item/05848777/