@article{05728625, title = {Positive solutions for system of first-order dynamic equations.}, journal = {Discrete Dynamics in Nature and Society}, volume = {2010}, year = {2010}, doi = {10.1155/2010/371285}, zbl = {1197.34181}, language = {en}, url = {http://dml.mathdoc.fr/item/05728625} }
Wang, Da-Bin; Sun, Jian-Ping; Li, Xiao-Jun. Positive solutions for system of first-order dynamic equations.. Discrete Dynamics in Nature and Society, Tome 2010 (2010) . doi : 10.1155/2010/371285. http://gdmltest.u-ga.fr/item/05728625/