@Misc{ 
  DelQua23,
  author = { Dello Schiavo, Lorenzo and Quattrocchi, Filippo },
  title = { Multivariate Dirichlet Moments and a Polychromatic Ewens Sampling
  Formula },
  journal = {  },
  year = { 2023 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6304/ },
  note = { cvgmt preprint}
}