TY - JOUR AU - Barari, A. AU - Ghotbi, Abdoul R. AU - Omidvar, M. AU - Ganji, D. D. TI - Solving Ratio-Dependent Predator-Prey System with Constant Effort Harvesting using Variational Iteration Method JO - Serdica Journal of Computing PY - 2009 SP - 1 EP - 14 VL - 3 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJC_2009_3_1_a0/ LA - en ID - SJC_2009_3_1_a0 ER -