共 50 条
- [41] Existence and multiplicity of periodic solutions for a class of second-order ordinary differential equations Monatshefte für Mathematik, 2020, 193 : 829 - 843
- [42] Existence and multiplicity of periodic solutions for a class of second-order ordinary differential equations MONATSHEFTE FUR MATHEMATIK, 2020, 193 (04): : 829 - 843
- [44] Existence and Asymptotics of Solutions for a Class of Second-Order Quasilinear Ordinary Differential Equations Differential Equations, 2005, 41 : 757 - 763
- [45] Multiple periodic solutions for a class of second-order neutral functional differential equations Advances in Difference Equations, 2017
- [46] Multiple periodic solutions for a class of second-order neutral functional differential equations ADVANCES IN DIFFERENCE EQUATIONS, 2017,