@article{05038338,
title = {Positive periodic solutions of functional discrete systems and population models.},
journal = {Advances in Difference Equations [electronic only]},
volume = {2005},
year = {2005},
pages = {369-380},
doi = {10.1155/ADE.2005.369},
zbl = {1111.39008},
language = {en},
url = {http://dml.mathdoc.fr/item/05038338}
}
Raffoul, Youssef N.; Tisdell, Christopher C. Positive periodic solutions of functional discrete systems and population models.. Advances in Difference Equations [electronic only], Tome 2005 (2005) pp. 369-380. doi : 10.1155/ADE.2005.369. http://gdmltest.u-ga.fr/item/05038338/