具偏差变元的高阶泛函微分方程的周期解存在性问题

李晓静;鲁世平

The Existence of Periodic Solutions for a Kind of High-Order Functional Differential Equation

LI Xiaojing;LU Shiping

系统科学与数学 . 2009, (3): 367 -377 . DOI: 10.12341/jssms10181