@Article{ 
  ButHar18,
  author = { Buttazzo, Giuseppe and Shrivastava, Harish },
  title = { Optimal shapes for general integral functionals },
  journal = { Annales Henry Lebesgue },
  year = { 2019 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3810/ },
  note = { cvgmt preprint}
}