共 50 条
- [23] Coexistence of unbounded solutions and periodic solutions of Liénard equations with asymmetric nonlinearities at resonance Science in China Series A: Mathematics, 2007, 50 : 1205 - 1216
- [24] Boundedness of solutions in asymmetric oscillations via the twist theorem ACTA MATHEMATICA SINICA-ENGLISH SERIES, 2001, 17 (02): : 313 - 318
- [26] Boundedness of Solutions in Asymmetric Oscillations via the Twist Theorem Acta Mathematica Sinica, 2001, 17 : 313 - 318