@Misc{ 
  CorTre21,
  author = { Correddu, Mario and Trevisan, Dario },
  title = { On Minimum Spanning Trees for Random Euclidean Bipartite Graphs },
  journal = {  },
  year = { 2021 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6660/ },
  note = { cvgmt preprint}
}