@Misc{ Alt13, author = { Altavilla, Amedeo }, title = { Some properties for quaternionic slice-regular functions on domains without real points }, journal = { Complex Variables and Elliptic Equations }, year = { 2015 }, doi = { 10.1080/17476933.2014.889691 }, volume = { 60 }, number = { 1 }, pages = { 59--77 }, URL = { https://gecogedi.dimai.unifi.it/paper/326/ }, note = { cvgmt preprint} }