@Article{ 
  AbAlCoSa15,
  author = { Abu-Ghanem, Khaled and Alpay, Daniel and Colombo, Fabrizio and Sabadini, Irene },
  title = { Gleason's problem and Schur multipliers in the multivariable quaternionic setting },
  journal = { J. Math. Anal. Appl. },
  year = { 2015 },
  doi = { 10.1016/j.jmaa.2015.01.022 },
  volume = { 425 },
  number = { 2 },
  pages = { 1083-1096 },
  URL = { https://gecogedi.dimai.unifi.it/paper/140/ },
  note = { cvgmt preprint}
}