共 50 条
[44]
Exact solutions of the generalized Lane-Emden equations of the first and second kind
[J].
PRAMANA-JOURNAL OF PHYSICS,
2011, 77 (03)
:545-554
[48]
On the nonexistence of Liouvillian first integrals for generalized Liénard polynomial differential systems
[J].
Journal of Nonlinear Mathematical Physics,
2013, 20
:475-479