@Misc{ 
  Mag12a,
  author = { Maggi, Francesco },
  title = { Sets of Finite Perimeter and Geometric Variational Problems: an Introduction to Geometric Measure Theory },
  journal = {  },
  year = { 2012 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/1880/ },
  note = { cvgmt preprint}
}