@Misc{ 
  ZadBraSer20,
  author = { Bravetti, Alessandro and Seri, Marcello and Zadra, Federico },
  title = { Geometric numerical integration of Liénard systems via a contact Hamiltonian approach },
  journal = {  },
  year = { 2020 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/639/ },
  note = { cvgmt preprint}
}