@Misc{ 
  GenSarStr17,
  author = { Gentili, Graziano and Sarfatti, Giulia and Struppa, Daniele Carlo },
  title = { A family of Cauchy-Riemann type operators },
  journal = { Riv. Mat. Univ. Parma },
  year = { 2020 },
  volume = { Special issue },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/212/ },
  note = { cvgmt preprint}
}