中国科学院数学与系统科学研究院期刊网
Periodic Solution of Predator-Prey Diffusive System of Three Species with Ratio-Dependence
Zheng Qiu ZHANG,Zhi Cheng WANG
Acta Mathematica Sinica, Chinese Series . 2004, (3): 531 -540 .  DOI: 10.12386/A2004sxxb0068