The Hopf cyclicity of Lienard systems

Maoan Han. The Hopf cyclicity of Lienard systems. Appl. Math. Lett., 14(2):183-188, 2001. [doi]

@article{Han01:1,
  title = {The Hopf cyclicity of Lienard systems},
  author = {Maoan Han},
  year = {2001},
  doi = {10.1016/S0893-9659(00)00133-6},
  url = {http://dx.doi.org/10.1016/S0893-9659(00)00133-6},
  researchr = {https://researchr.org/publication/Han01%3A1},
  cites = {0},
  citedby = {0},
  journal = {Appl. Math. Lett.},
  volume = {14},
  number = {2},
  pages = {183-188},
}