@Article{ 
  Sar15a,
  author = { Sarfatti, Giulia },
  title = { The quaternionic Hardy space and the geometry of the unit ball },
  journal = { Bruno Pini Math. Anal. Semin. },
  year = { 2015 },
  doi = { 10.6092/issn.2240-2829/5893 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/128/ },
  note = { cvgmt preprint}
}