@Article{ 
  zan06,
  author = { Zanini, Chiara },
  title = { Singular perturbations of finite dimensional gradient flows },
  journal = { Discrete Contin. Dyn. Syst. Ser. A },
  year = { 2007 },
  volume = { 18 },
  pages = { 657-675 },
  URL = { http://cvgmt.sns.it/paper/1203/ },
  note = { cvgmt preprint}
}