@article{05564153, title = {Solving ratio-dependent predator-prey system with constant effort harvesting using homotopy perturbation method.}, journal = {Mathematical Problems in Engineering}, volume = {2008}, year = {2008}, doi = {10.1155/2008/945420}, zbl = {1175.34012}, language = {en}, url = {http://dml.mathdoc.fr/item/05564153} }
Ghotbi, Abdoul R.; Barari, A.; Ganji, D.D. Solving ratio-dependent predator-prey system with constant effort harvesting using homotopy perturbation method.. Mathematical Problems in Engineering, Tome 2008 (2008) . doi : 10.1155/2008/945420. http://gdmltest.u-ga.fr/item/05564153/