中国科学院数学与系统科学研究院期刊网
Periodic Solutions of a Predator-Prey System with Stage-Structure for Predator
Zheng Qiu ZHANG, Zhi Cheng WAN
Acta Mathematica Sinica, Chinese Series . 2005, (3): 541 -548 .  DOI: 10.12386/A2005sxxb0065