一类二阶泛函微分方程的多重周期解

郑冬梅;鲁世平

Multiple Periodic Solutions to a Class of Second-Order Functional Differential Equations

ZHENG Dongmei ;LU Shiping

系统科学与数学 . 2010, (3): 370 -378 . DOI: 10.12341/jssms08952