@Misc{ 
  LučPasRaj20,
  author = { Lučić, Danka and Pasqualetto, Enrico and Rajala, Tapio },
  title = { Characterisation of upper gradients on the weighted Euclidean space and
  applications },
  journal = {  },
  year = { 2020 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4773/ },
  note = { cvgmt preprint}
}