中国科学院数学与系统科学研究院期刊网
Coupled Periodic Solutions of Nonlinear Evolution Equations in Banach Spaces
Pei Long SHEN(1),Fu Yi LI(2)
Acta Mathematica Sinica, Chinese Series . 2000, (4): 685 -694 .  DOI: 10.12386/A2000sxxb0089