@Article{ 
  BisSto13,
  author = { Bisi, Cinzia and Stoppato, Caterina },
  title = { Regular vs. classical Möbius transformations of the quaternionic unit ball },
  journal = { Springer INdAM Ser. (Advances in hypercomplex analysis) },
  year = { 2013 },
  doi = { 10.1007/978-88-470-2445-8_1 },
  volume = { 1 },
  pages = { 1-13 },
  URL = { https://gecogedi.dimai.unifi.it/paper/166/ },
  note = { cvgmt preprint}
}