@article{05823131, title = {Persistence of an SEIR model with immigration dependent on the prevalence of infection.}, journal = {Discrete Dynamics in Nature and Society}, volume = {2010}, year = {2010}, doi = {10.1155/2010/727168}, zbl = {1201.92057}, language = {en}, url = {http://dml.mathdoc.fr/item/05823131} }
Wang, Wenjuan; Xin, Jingqi; Zhang, Fengqin. Persistence of an SEIR model with immigration dependent on the prevalence of infection.. Discrete Dynamics in Nature and Society, Tome 2010 (2010) . doi : 10.1155/2010/727168. http://gdmltest.u-ga.fr/item/05823131/